To: Joe Copia who wrote (12702 ) 6/22/1999 5:13:00 PM From: SgtPepper Respond to of 13776
Anyone else still in LMGR? Concept sure is intriguing.zdnet.com __________________________________________________________________ Light Makes Might -- Assuming It's Right By Joe McGarvey June 16, 1999 6:23 PM ET There are plenty more questions than answers at this point, and there's more than a little reason to be skeptical -- but if one Toronto-based company can back up its claims with real, working technology, the carrying capacity of fiber-optic cables could reach levels that make today's Dense Wavelength Division Multiplexing technology look paltry. The company, Light Management Group, last month unveiled its acoustical modulation of light technology, an alternative to the Dense Wavelength Division Multiplexing currently installed in the networks of most major carriers. Scientists at networking companies such as Ciena (www.ciena.com), Lucent Technologies (www.lucent.com) and Nortel Networks (www.nortelnetworks.com) have been making impressive gains with DWDM over the past few years, with Nortel scheduled to deliver a system cramming 160 wavelengths into each of its fibers so that a single strand can deliver 10 gigabits per second of bandwidth. Light Management claims its technology can create more than 65,500 simultaneous 10-Gbps channels on a single fiber, yielding glass routes that can carry traffic at hundreds of terabits per second. "And that's significantly understating the capability of the technology," says a consultant at the company, who asks not to be identified. The concept underlying acoustical modulation of light waves is not well-understood or even recognized by most industry analysts. According to information posted on Light Management's Web site (www.lmgr.net), Alexander Graham Bell experimented with the technology back in the 19th century, a few years after he invented the telephone. Although Bell believed the "photophone" was a better mechanism for transmitting voice waves than electrical signals, he never perfected the technology, according to Light Management. Shadows and light The almost inconceivable number of channels of light that Light Management claims its technology can produce is made possible by creating a sort of mesh of light waves that occupy the fiber strand, the consultant says. The creation of the optical mesh is analogous to the thousands of crevices of light and shadows produced when a still body of water is disturbed, he adds. Light Management's technology is actually the result of the company's primary business pursuit: the manufacture of equipment for conducting professional laser shows. In developing its laser projector technology, engineers at the company recognized that the same approach could be adapted to the telecommunications industry. "After the projector was ready, a couple of us looked at it and said, 'This is a glorified digital switch network,' " the consultant says. In addition to raw capacity, the technology can maintain the intensity of light signals for longer distances than DWDM technology, the consultant says. That attribute would reduce the cost of networks by eliminating the need for amplification equipment. Barrington Simon, the company's chief executive, says Light Management is in discussions with telecommunications companies, which have shown interest in adapting the technology for increasing the capacity of fiber networks. "We are in advanced stages and defer in talking about it, since so much is at stake here," he says. At present, believers in Light Management are hard to find, mainly because so little is known about the company and its technology. Analysts who track the optical market simply aren't familiar with the company, although Dana Cooperson at research firm Ryan Hankin Kent (www.rhk.com) downplays the significance of Light Management's announcement. "The issue is that the number of channels really doesn't matter," Cooperson says. "The company needs credibility, and they need to offer something more than pure capacity. Ultimately, we believe it's a combination of bandwidth, distance and manageability that will be the key to success." Light Management isn't the first company to suggest an alternative optical transmission technology to DWDM. Late last year, SilkRoad (www.silkroadcorp.com) introduced a DWDM alternative that pumped additional capacity into a single channel of light. SilkRoad was scheduled to demonstrate its technology at last week's SuperComm show in Atlanta. Light Management was formed only in mid-May, after a company called Triton Acquisition reorganized under the Light Management name and acquired another company, called Laser Show Systems. Laser Show is the division responsible for the company's optical technology. Light Management issued its initial public offering in late May. At press time, the stock was trading at about $7.50 per share. At a Glance: Bandwidth unlimited Although Dense Wave Division Multiplexing technology tops the charts for multiplying the bandwidth potential cof fiber-optic networks, two unproven technologies also are being floated as DWDM alternatives. Alternative 1: Acoustical modulation of light Major proponent: Light Management Group Potential capacity: 65,500 channels, each delivering 10 gigabits per second (total capacity 655 terabits per second) Alternative 2: Refractive synchronization communications Major proponent: SilkRoad Potential capacity: 1 channel delivering 10 terabits per second