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Technology Stocks : SDL, Inc. [Nasdaq: SDLI] -- Ignore unavailable to you. Want to Upgrade?

To: tripperd2 who wrote (1432)	5/25/2000 11:36:00 AM
From: pass pass	Read Replies (1) \| Respond to of 3951

To all, Investor's Business Daily will have a feature article on SDLI tomorrow.

To: tripperd2 who wrote (1432)	5/26/2000 3:19:00 PM
From: pat mudge	Respond to of 3951

I thought SDLI was the inventor and leader in Raman pumps but Gilder would have one believe that IMG was the dominant company in this arena, Is this just more spin? I haven't been ignoring you on purpose. I simply don't know enough about IMG to answer thoroughly. I do know SDL is first to ship certified Raman products and according to company management has approximately a one-year lead on the competition. Perhaps SDL's not given GG the time of day and therefore he stands nothing to gain by backing them. Clearly, he underestimates the intelligence his audience by not being completely forthcoming. Just my take. Pat

To: tripperd2 who wrote (1432)	5/26/2000 4:50:00 PM
From: Lee	Read Replies (1) \| Respond to of 3951

triipperd2,..Re:.would have one believe that IMG was the dominant company in this arena, I looked up IMG and if it is the same company shown in the links below, I can't see the FO connection. biz.yahoo.com igc.com Some product info on Raman pumps from SDLI and ITF. Also, I understand JDSU will be manufacturing one as well. sdli.com itfoptical.com Cheers, Lee

To: tripperd2 who wrote (1432)	5/27/2000 2:07:00 AM
From: pat mudge	Respond to of 3951

IRE-Polus Group, Raman specifications: ire-polusgroup.com (Note there is no mention of being qualified. ) Raman press from SDLI: SDL-RL30 is a revolutionary step in high power pumping options for telecommunications. The pump system consists of a double-clad fiber laser, pumped by an array of SDL's telecommunication qualified pump modules, followed by a Cascaded Raman Resonator that shifts the light from the fiber laser to the emission wavelength. The RL30 opens up new opportunities in extending the reach of long-haul optical links. It can be used as a pump for distributed Raman amplification, where the transmission fiber itself acts as the gain medium. One very important benefit of Raman amplification is that it can be used over a wide range of wavelengths, rather than within a fixed wavelength region as with erbium-doped fiber technology. The RL30 is available in all wavelengths required to cover today's entire transmission band (1528-1610 nm). The 1480 nm version of the RL30 can also be used as a high powered pump for standard EDFAs. In repeaterless submarine systems the RL30 can be used to pump submerged erbium-doped fiber gain blocks. The high power of the RL30 (1.7 W nominally) makes it ideal for "pump sharing" architectures, where one high-powered pump source is used for several erbium-doped fiber gain block High power pumping source 500 mW to >1.7 W Wavelength options - 1365 nm - 1430 nm - 1455 nm - 1480 nm - 1500 nm Telecom Grade Reliability Qualified to tough Telcordia standards Scalable Architecture Distributed DWDM Raman amplification Repeaterless submarine systems High power pump source for erbium amplifiers Remote pumping of submerged erbium-doped fiber gain blocks Pump sharing architectures Raman fiber laser high power pump system The RL30 is a revolutionary step in high power pumping options for telecommunications. The pump system consists of a double-clad fiber laser, pumped by an array of SDL's telecommunication qualified pump modules, followed by a Cascaded Raman Resonator that shifts the light from the fiber laser to the emission wavelength. The design features a fused glass construction for optimum reliability, with no free space optics or epoxies in the light path. The RL30 has been qualified to tough Telcordia standards. The RL30 opens up new opportunities in extending the reach of long-haul optical links. It can be used as a pump for distributed Raman amplification, where the transmission fiber itself acts as the gain medium. One very important benefit of Raman amplification is that it can be used over a wide range of wavelengths, rather than within a fixed wavelength region as with erbium-doped fiber technology. The RL30 is available in all wavelengths required to cover today's entire transmission band (1528-1610 nm). The 1480 nm version of the RL30 can also be used as a high powered pump for standard erbium-doped fiber amplifiers. In repeaterless submarine systems the RL30 can be used to pump submerged erbium-doped fiber gain blocks. The high power of the RL30 (1.7 W nominally) makes it ideal for "pump sharing" architectures, where one high-powered pump source is used for several erbium-doped fiber gain blocks. To get specifications, go to: sdli.com Do a subject search under "raman," and go down to the bottom of the list and click on "RL30 Description." That gives you a lot and then at the bottom you can click on "specifications" to access the pdf file. One paragraph of note: Typically, the SDL-RL30 can be run at an output power of 1.5 W, but can be scaled to lower power to enable better overall system reliability. For example, when the unit is operated at 1 W output, the pumps are driven at lower power levels, which increases their lifetime significantly. The SDL-RL30 Raman laser source also provides excellent power conversion efficiencies, typically 45% from the 1110-nm to the 1455/1480-nm output bands and approximately 20% from the 920-nm output bands of the pump lasers. (Typical output characteristics of the RL30 are shown below.) Since most of this is Greek, I find it interesting that output power can be more optimal at lower levels. In other words, there's a lot more involved in being a world-class Raman system that simply power output. Alcatel listings: alcatel.com alcatel.com Lucent listings: searchus.lucent.com{_ALL}%3Cand%3E+raman&topic=_ALL&BU=DEFAULT&collection=LU&resulttemplate=default.hts&action=filtersearch&filter=filter.hts&resultmaxdocs=200&sortfield=score&sortorder=desc&displayformat=full&resultcount=10&Yourquery=raman&P1=y I'm not sure what the difference is between cascaded Raman and dispersed Raman. Perhaps someone can explain. Pat