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Technology Stocks : Optical Networks and Components, DWDM and Tunable Lasers -- Ignore unavailable to you. Want to Upgrade?


To: Theophile who wrote (33)2/14/2000 12:44:00 AM
From: Douglas Nordgren  Read Replies (1) | Respond to of 275
 
What a great find Martin. Will certainly enjoy rafting those rapids. With the technology changing so quickly though, I doubt I will fall into the same river twice.

Douglas



To: Theophile who wrote (33)2/20/2000 2:37:00 AM
From: J Fieb  Read Replies (2) | Respond to of 275
 
Nice thread here. Big meeting coming up.

osa.org

Some of the short course offerings..

Sunday, March 5, 2000

Sunday, March 5, 8:30amð11:30am
Rm. 349/350

SC101 ú System impact of fiber nonlinearities (repeat of course SC131), Andrew R. Chraplyvy, Bell Labs, Lucent Tech., USA. Advances in optical amplifier technology have reshaped the lightwave communications landscape. Erbium-doped fiber amplifiers have enabled systems engineers to begin exploiting the enormous transmission capacity of single-mode fibers by implementing wavelength multiplexing. However, implementation of amplifier technology magnifies the effects of optical nonlinearities in the transmission fibers by increasing unregenerate propagation distances and optical powers in the fibers. These nonlinearities can limit the information capacity of lightwave communications.

The nonlinearities can be separated into two broad classes. Stimulated scattering processes, such as Brillouin and Raman, cause wavelength conversion of signals. This gives rise to unwanted noise, crosstalk, and power depletion. The nonlinear refractive index of silica is the source of such effects as self-phase modulation, cross-phase modulation, and modulation instability, which produce spectral broadening, and four-photon mixing which mixes signals in wavelength multiplexed systems.

This talk will describe the various optical nonlinearities and discuss the limits imposed by these nonlinearities on the information capacity of lightwave communication systems. Methods for reducing the systems impact of nonlinearities will also be presented.

Andrew R. Chraplyvy received the A.B. degree in physics from Washington University, St. Louis, in 1972, and the M.S. and Ph.D. degrees in physics from Cornell University in 1975 and 1977, respectively. From 1977 to 1980 he was a member of the Physics Department at General Motors Research Labs, Warren, MI. Since 1980 he has been with Bell Labs, Holmdel, NJ, where he presently heads the Lightwave Sys. Res. Dept. He has been active in various fields, including lightwave communications systems, nonlinear fiber optics, nonlinear infrared spectroscopy, high-resolution spectroscopy. Dr. Chraplyvy is a Bell Labs Fellow, a Fellow of the Optical Society of America, and a member of the American Physical Society.

Sunday, March 5, 8:30amð11:30am
Rm. 347/348

SC102 ú Passive components for lightwave systems (repeat of course SC137), Kenneth O. Hill, Comm. Res. Ctr., Canada. Passive components perform a variety of functions in lightwave systems such as splitting, coupling, filtering, polarizing, depolarizing, polarization rotation and splitting, wavelength division multiplexing and demultiplexing and dispersion compensation. This course will review fiber-based, micro-optic and silica-on-silicon passive component technology for lightwave communications systems. The emphasis will be on treating a broad range of devices and describing the principles governing their operation and reviewing the device specifications that are realizable in practice. The course notes have been completely revised to provide a balanced perspective of passive component technology. Communications applications of selected passive components will be used for illustration. The course is suitable for persons generally at the beginner/ intermediate level seeking a general understanding of the technology and not detailed knowledge of advanced design methods or packaging techniques.

Kenneth O. Hill, P.Eng. (Ontario) received the Ph.D. from McMaster Univ., Canada, in 1968 for work on Q-switched Nd3+ glass lasers. He joined what is now the Comm. Res. Ctr. (CRC) to work on holographic data storage and optical signal processing. His research interests include fiber-based devices, fiber photosensitivity (a phenomenon he discovered in 1978 for which he received the 1996 Tyndall Award), and nonlinear interactions in optical waveguides. He was awarded the 1998 Canadian Assn. of Physicists/ National Institute of Optics Medal for Outstanding Achievement in Applied Photonics and is the 1995 Manning Principal Award recipient. He is a Fellow of the Optical Society of America, Assoc. Editor for Photonics Tech. Letters and the Journal of Lightwave Technology and was OFC© '96 Program Co-Chair and OFC© '98 General Co-Chair. He currently serves on the OFC© Steering Committee as OSA representative.

Sunday, March 5, 8:30amð11:30am
Rm. 345/346

SC103 ú System applications of DWDM technologies (repeat of course SC134), Chinlon Lin, Tyco Submarine Systems, USA. This course provides a basic introductory-level overview on the system applications of wavelength-division multiplexing (WDM) technologies. High-density WDM (or DWDM for dense-WDM) lightwave transmission systems are essential for very high capacity (100 Gbit/s to > 1 Tbit/s) fiber comm. networks. The growth of multimedia Internet services high-speed data and high-capacity video services will drive future needs for such high-capacity long-haul backbone and metropolitan networks as well as broadband local access. This course will review the basic concepts and the building blocks of WDM systems, as well as their applications. The role of wideband optical fiber amplifiers, DWDM mux/dmux and OADM technologies, dispersion compensation/control techniques, etc., in fiber communications systems will be discussed. Applications of DWDM systems in long-haul trunking networks, metropolitan networks, as well as broadband access networks (such as HFC and FTTH/FTTX) for both the cable TV and the telecom industries will be discussed. Recent research trends in DWDM technologies and applications will also be briefly summarized.

Chinlon Lin received his Ph.D. from the Univ. of California, Berkeley in 1973, MS from Univ. of
Illinois, Champaign-Urbana, in 1970, and BSEE from Natl. Taiwan Univ. in 1967. He joined Bell Labs, Holmdel, NJ, in 1974. At Bell Labs, his research was on nonlinear optics in fibers and high-speed fiber transmission studies. Working with Bell Labs colleagues, he originated and demonstrated the idea of both dispersion-shifted fibers and dispersion-compensating fibers. He was on leave from Bell Labs as a visiting Guest Professor at the Tech. Univ. of Denmark in 1984. He joined Bellcore in 1986 where he was Director of Broadband Lightwave Sys. Res. At Bellcore, his group worked on; tunable filters and EDFAs for applications in DWDM and analog lightwave video systems, dispersion-compensation for high-speed and DWDM systems, an experimental Bellcore Res. Network, VCSEL DWDM array, lightwave systems for multichannel hybrid AM/64- /256-QAM-digital video trunking and distribution for cable TV's HFC broadband access, and hybrid DWDM systems. He also provided consultation to Bell Atlantic, BellSouth, NYNEX, Pacific Bell and SBC Comm. on issues related to EDFA, WDM and OC-192 systems, and analog/digital lightwave video distribution systems. He joined Tyco Submarine Sys. Labs in September 1997, to work on lightwave technologies for DWDM systems in next-generation global undersea fiber networks. He was an Assoc. Editor for IEEE Journal of Lightwave Technology and Photonics Technology Letters. He served on the technical program committees for both NFOEC and OFC©. He is a Fellow of both IEEE and OSA.

Sunday, March 5, 8:30amð11:30am
Rm. 343/344

SC104 ú Fiber-optic transmitter and receiver design (repeat of course SC151), Tran Van Muoi, Optical Comm. Products, Inc., USA. This course focuses on practical design issues and trade-offs in optical transmitter and receiver design. The transmitter design includes high-speed modulation circuitry as well as optical power and extinction ratio stabilization (average power control or APC circuit, duty cycle compensation and thermal stabilization). As for the receiver, the course will cover the design of the front-end amplifier (high impedance versus transimpedance), AGC versus limiting amplifier, clock recovery (PLL versus SAW filter) and decision circuit. Important paraðmeters (sensitivity, dynamic range, distortion, signal-to-noise ratio, etc.) and their impact on the receiver design will be highlighted. Transmitter and receiver design differences between digital transmission and analog transmission (such as multichannel AM-VSB and FM video distribution) will be discussed. The status of electronic integration (IC) for lightwave comm. with a survey of commercially available Si and GaAs ICs for FDDI, Fast Ethernet, Gigabit Ethernet and Fiber Channel data links as well as SONET/ATM transmitters/receivers will be presented. Fabrication and packaging technologies for transmitter and receiver modules will also be discussed. The state-of-the-art of optoelectronic integration (OEIC) for optical transmitters/receivers will be briefly reviewed.

Tran V. Muoi received the B.E. and Ph.D. degrees in electrical engineering from the Univ. of Western Australia in 1974 and 1977 respectively. He worked at Bell Labs, Holmdel, NJ (1978-1981), TRW Electro-Optics Research Center, El Segundo, CA (1981-1984), and PCO, Chatsworth, CA (1984-1991). He is now President of Optical Comm. Products, Inc., Chatsworth, CA. His interests include theoretical analysis as well as practical design of high-speed transmitters, receivers and subsystems for both analog and digital fiber optic communications. He is a frequent lecturer on the subject at many technical conferences as well as university extension courses. He was the Tech. Program Co-chair of OFC© '91 and General Co-chair of OFC© '93.

Sunday, March 5, 8:30amð11:30am
Rm. 341/342

SC105 ú WDM network architecture (repeat of course SC135), Rajiv Ramaswami, Xros Inc., USA. This short course reviews architectures for optical networks using wavelength division multiplexing (WDM). WDM links are widely deployed today in operating networks and are evolving to more complex network topologies incorporating wavelength add/drop multiplexers and cross-connects. The economic benefits and tradeoffs associated with deploying WDM networks (as opposed to links), specifically, add/drop multiplexers and cross-connects will be discussed for interexchange and local-exchange networks.

Tradeoffs between component requirements and network performance will be discussed, particularly in terms of the reduction in SONET equipment due to adding WDM add/drop multiplexers, the number of wavelengths required and in the use of wavelength converters and switches. Network control and management aspects of combined SONET/WDM or IP/ATM/WDM networks will also be covered with an emphasis on service restoration techniques and quality-of-service monitoring. Testbed implementations and standards issues will be discussed if time permits.

Rajiv Ramaswami received a Ph.D. degree in Electrical Engineering and Computer Science from the Univ. of California, Berkeley, and leads a group at Tellabs responsible for developi He is presently with Xros, a startup developing optical cross
connects. He previously led optical networking product development at Tellabs, including their metro WDM product line. Prior to joining Tellabs, he was at IBM Res., where he led the development of an early commercially-available WDM system. He has published extensively on optical network architecture and holds several patents. Dr. Ramaswami is a receipient of the IEEE W.R.G. Baker and W.R. Bennett prize paper awards and an outstanding innovation award from IBM. He is the coauthor of a book "Optical NetworksA Practical Perspective" (Morgan Kaufmann, 1998).

Sunday, March 5, 8:30amð11:30am
Rm. 339/340

SC106 ú Transport network fundamentals, John L. Strand, AT&T Labs-Res., USA. Photonics technology is advancing very rapidly on many fronts; however, to be successful a technical advance must find a real-world application. This short course presented from the perspective of a large long distance telecommunications company, will provide an overview of the evolving technological, network design, and business environments in telecommunications transport networks. Topics covered will include business basics (where the money comes from and goes to); fundamentals of transport network design (facility hierarchies, generic types of network elements, multiplexing and multiplex layers, routing and capacity expansion, key cost trade-offs, non-capital-related considerations); reliability and restoration; SONET/SDH (basics, network design principles, strengths/weaknesses); and ATM/IP Networking (technology basics, relationships to existing and new services, synergies and trade-offs). Optical networking (important technologies, opaque versus transparent optical networks, designing the optical network layer, reliability & restoration, alternative deployment architectures, synergies and trade-offs with other parts of the transport network) will then be addressed.

John L. Strand received the B.A. degree in Economics from Harvard and the Ph.D. in mathematics from the Univ. of California, Berkeley. He has held various technical and management positions with AT&T, including leadership roles in transport network architecture and transport planning systems. He has also worked in a number of other areas, including demand forecasting, new services definition and development, and applied mathematics (stochastic control). Currently he is a consultant with the Lightwave Networks Res. Dept. in AT&T Labs-Res.

SHORT COURSES
Sunday, March 5, 8:30amð11:30am
Rm. 337/338

SC107 ú WDM components (repeat of SC161), Bruce Nyman, JDS Uniphase, USA. The deployment of WDM systems has been made possible by advanced wavelength demultiplexers and the development of erbium doped fiber amplifiers. Demultiplexers represent the state of the art in passive components. These and other passive components are used throughout WDM networks. For example, a typical optical amplifier will contain an isolator, a pump and signal multiplexer, and optical taps. Network applications may require optical switches and attenuators.

In this short course, we will discuss the passive components found in a typical WDM system. For each one, device requirements and technology options will be examined. While passive devices may be simple in function, there are many performance issues such as insertion loss, return loss, polarization dependent loss, polarization mode dispersion and chromatic dispersion. Also, all of these characteristics have temperature and wavelength dependencies. For simple components, fabrication techniques include fused fiber and dichroic filter based devices. For demultiplexers, fiber bragg gratings and waveguide routers must also be considered. The theory of operation of each technology will be reviewed.

High reliability is a common requirement for all devices. The reliability requirements are specified by different standards organizations, a review of these requirements is provided. Another common requirement is accurate measurements. Typical measurement methods have been defined by standards organizations. However, new devices and applications may require new definitions and test methods.

Bruce Nyman joined JDS Uniphase in January 1996 to develop optical amplifiers and measurement equipment for WDM systems. From 1982 to 1996 he was with AT&T Bell Labs. From 1990 to 1996 he was involved in the development of optically amplified undersea systems. His efforts included soliton WDM systems and measurement equipment for optical components. Before that, he was at the Engineering Research Center where he developed measurement equipment for semiconductor manufacturing. Dr. Nyman received the Ph.D., MS, and BS degrees from Columbia University in 1988, 1983, and 1982 respectively. He is a member of the IEEE and Sigma Psi.

Sunday, March 5, 8:30amð11:30am
Rm. 327

NEW! SC108 ú WDM in long-haul transmission systems, Neal S. Bergano, Tyco Submarine Systems, Ltd., USA. The transmission capacity of long-haul undersea lightwave systems is experiencing the second "order-of-magnitude" increase within the past 6 years. The introduction of single channel EDFA based systems gave the first large capacity increase, and WDM is giving the next. These large capacity enhancements have resulted from an increased understanding of the effects that can limit performance of WDM systems. Important strides have been made in areas of dispersion management, gain equalization, and modulation formats which have made possible the demonstration of capacities approaching 1 TB/s. This short course will review the important issues regarding the use of wavelength division multiplexing in long-haul lightwave systems. Included will be: long-haul undersea transmission systems, the amplified transmission line, gain equalization, hole-burning in EDFAs, transmission formats, optical fiber nonlinearities, dispersion management, forward error correction, measures of system performance, SNR and/or performance fluctuations, and experimental results.

Neal S. Bergano is Managing Director of System Res. & Selected Development at Tyco Submarine Sys. Ltd. The main focus of his career has been understanding how to expand the transmission capacity of long-haul lightwave systems, including most recently the use of WDM with optical amplifiers. In 1981 he received a BS degree in EE from the Polytechnic Inst. of New York and in 1983 received an M.S. degree in EE and CS from MIT. In 1981 he joined the technical staff of Bell Labs' undersea systems division. In 1992 Mr. Bergano was named a distinguished member of the technical staff of AT&T Bell Labs. In 1996 he was promoted to AT&T Tech. Consultant. In 1997 he was promoted to AT&T Tech. Leader. He served as the Technical Co-Chair for the 1997 OFC© conference, and as the General Co-Chair for the 1999 OFC©/IOOC conference. He holds 14 US patents in the area of lightwave transmission systems. He is an IEEE Fellow, an AT&T Fellow, an Assoc. Editor for Photonics Technology Letters, a member of the OSA, and an elected member of the board of governors for IEEE/LEOS.

SHORT COURSES
Sunday, March 5, 9:00amðnoon
Rm. 328/329

SC109 ú WDM networking elements and their enabling technologies (repeat of course SC138), Rod C. Alferness, Bell Labs, Lucent Tech., USA. Wavelength-division multiplexed (WDM) transmission systems are now being aggressively deployed by both long distance and local service providers. While initial deployment has been justified solely by the increased capacity needs of point-to-point links that use embedded, standard fiber, WDM also offers the potential of high-level wavelength channel transport networking analogous to today's electrically networked time-division channels. Such networks would provide per wavelength reconfigurable add/drop and routing through branch points to reduce electrical terminations while providing provisioning, rapid restoration and wavelength addressed services.

This course provides an overview of the WDM networking elements, and their technologies, required building evolving WDM transport networks. After a discussion of the driving forces for evolution from today's point-to-point WDM links to reconfigurable WDM multi-point transport networks, we describe the potential network architectures. The functional requirements of the WDM networking elements, primarily configurable WDM add/drop multiplexers and cross-connects, needed to implement these networks is reviewed. Proposed architectures for the configurable add/drop multiplexer, and optical cross-connect is then discussed. Some enabling technology alternatives for key components including multiwavelength sources, wavelength demultiplexers, tunable filters and optical switching fabrics to build these networking elements, will be reviewed. Finally some examples of network element research demonstrations including those from optical networking consortia such as ACTS, MONET and NTON will be presented.

Rod C. Alferness is currently the Chief Technical Officer of the Optical Networking Group, Lucent Tech. Previously he was head of the Photonics Networks Research Department of Lucent Bell Labs, Holmdel, New Jersey. He joined Bell Labs in 1976 after receiving a Ph.D. in physics from the Univ. of Michigan where his thesis research concerned optical propagation in volume holograms. Since then his research has centered on novel waveguide electro-optic devices and circuits - including switch/modulators, polarization controllers, tunable filters - and their applications in high capacity lightwave transmission and switching systems. Presently, his research interests include photonic integrated circuits in InP, photonic switching systems and optical networks. Dr. Alferness has authored over
100 papers, holds more than 30 patents and has authored five book chapters. He is a Fellow of the Optical Society and the IEEE Lasers and Electro-Optics Society (LEOS). He has served as an elected member of the LEOS AdCom and on many program committees for various conferences. He has served on a variety of technical program committees and was the General Co-Chair of OFC© '94 and Conference Chair for Photonics in Switching, Integrated Photonics and the Optical Networks Conferences. Dr. Alferness has served as Associate Editor for Optics Letters and Photonic Technology Letters. He has served the IEEE Lasers and Electro-Optics Society (LEOS) as an elected member and as Vice President of Conferences. He was the President of LEOS in 1997 and is currently the Editor of the Journal of Lightwave Technology.

Sunday, March 5, 9:00amðnoon
Rm. 324/325

SC110 ú Broadband switching (repeat of course SC147), Joseph Berthold, CIENA Corp., USA. Broadband communications networks all require switching, but the choices of systems level approaches and technologies for switching can be daunting. This course will provide an overview of the major approaches to broadband switching, including gigabit packet switching, as used in the Internet, ATM cell switching, for multiservice networks, circuit switching, as used in SDH or SONET networks, and all-optical switching, as proposed for transparent optical networks. It will cover the strengths and weaknesses of each of these approaches. It will also provide a view of how these technologies can complement one another, and the combinations that are expected to be important in the future.

Joseph Berthold is Chief of Network Architecture at CIENA Corp. Formerly, he was an Executive Director in the Applied Research Area of Bellcore, where he was responsible for the management of research programs related to broadband network systems, and was the Program Manager and chairman of the Technical Management Committee for the Multiwavelength Optical Networking Consortium (MONET). He has managed previous Bellcore research programs in high speed electronic switching and multiplexing.

Sunday, March 5, 9:00amðnoon
Rm. 321/322

SC111 ú Optical fiber communications technology and system overview (repeat of course SC140), Ira Jacobs, Virginia Polytechnic Inst. and State Univ., USA. This course is intended to provide an overview of the technology and applications of fiber optics communications that may be helpful for those attending other Short Courses and the Technical Sessions at the Conference. The basic components of an optical fiber communication system are described, and factors affecting loss-limited and dispersion-limited transmission distances quantified. Although principal emphasis is devoted to point-to-point links, some aspects of network design are also considered, including SONET, ring topologies to achieve survivable networks, wavelength division multiplexing, the application of optical amplifiers as linear repeaters, and analog systems for CATV and mobile radio applications. Emphasis will be on physical principles, performance limits, and technology and application directions.

Ira Jacobs has been Professor of Electrical Engineering and a member of the Fiber and Electro-Optics Res. Ctr. at Virginia Tech since 1987, where he teaches courses and conducts research in fiber optics and telecommunications. Prior to that he was at AT&T Bell Labs for 32 years, during which time he directed much of AT&T's development of terrestrial fiber optic transmission systems.

Sunday, March 5, 9:00amðnoon
Rm. 318/319

SC112 ú Fiber to the X (repeat of course SC141), Paul W. Shumate, IEEE Lasers and Electro-Optics Society, USA. Internet access, high-speed data, digital video, and a growing worldwide focus on always-on "full-service" capabilities have led to new definitions of fiber access, particularly fiber-to-the-cabinet and fiber-to-the-home. This course will examine the results of the Full-Service Access-Network Initiative, emphasizing these two systems, their enabling technologies, and cost objectives. Comparisons of costs and capabilities with other alternatives, as well as select business cases for deployment, will be presented. Finally, alternatives to the ATM-PON will also be discussed.

Paul W. Shumate was formerly Chief Scientist and Assistant General Manager at Telcordia Tech., formally Bellcore. He has been a leading proponent of advanced fiber technologies for delivering new residential broadband services since 1980. He is a Bellcore Fellow, a Fellow of the IEEE and member of the Optical Society of America. In 1993, he received the Telephony Vision award and the IEEE Edwin Armstrong award, both for fiber-in-the-loop contributions. His research interests include optical networks, lightwave devices, systems, reliability, and business modeling.

Sunday, March 5, 9:00amðnoon
Rm. 317

SC113 ú Optical amplifiers in lightwave systems (repeat of course SC143), John Zyskind, Sycamore Networks, USA. This short course will introduce optical amplifiers and review their applications in optical communications systems. The emphasis will be on the erbium-doped fiber amplifier (EDFA) which has been the key driver for the explosive growth of optically amplified systems and wavelength division multiplexed systems. We will discuss the critical characteristics of EDFAs, such as noise performance, conversion efficiency, gain spectrum, polarization dependence and dynamic response. These characteristics are almost ideal for applications in optical communications as power boosters, as in-line amplifiers or repeaters and as pre-amplifiers. However, EDFAs are not quite perfect and we will examine how they should be designed to approach the ideal as nearly as possible for each application. We will discuss applications in undersea and terrestrial long haul systems, wavelength division multiplexed systems and cable television distribution networks. Among advanced applications considered will be broadband WDM systems and wavelength routed networks.

John Zyskind received the A.B. Honors in physics from the Univ. of Chicago, and the M.Sc. and Ph.D. degrees, also in physics, from the California Inst. of Tech. where he was a Fannie and John Hertz Fellow. At Bell Labs he was active in pioneering erbium-doped fiber amplifier (EDFA) research which was instrumental in AT&T's early decision to develop commercial optically amplified communications systems. He has also been a leader in research on advanced architecture optical amplifiers for dense wavelength division multiplexed optical fiber communications systems and high capacity undersea optical communications systems, as well as leading Lucent's research on optical amplifiers for MONET. From April to July 1993 he was a visiting professor at the Technion (Israel Inst. of Tech.) in the Faculty of Electrical Engineering. In 1996 he was appointed Distinguished Member of Tech. Staff at Bell Labs. In 1997, he was promoted to the position of Tech. Manager in Advanced Optical Networking. In 1998, he joined AMP Inc. as Director of Technology and Product Development for Global Optoelectronics where he leads development of active and passive devices for applications in optical communications.

osa.org

Exhibitor list is here

osa.org

List of publications here

osa.org

How to find any companies in this area not way overpriced?