Fiberspace Announces Major Advancement in Wavelength Stability; Innovation in Optical Spectrum Efficiency Increases Capacity of Existing Fiber.Business Editors WOODLAND HILLS, Calif.--(BUSINESS WIRE)--Oct. 25, 2001 With the introduction of its optical phase locked loop (OPLL OPLL Optical Phase-Locked Loop OPLL Offset Phase-Locked Loop OPLL Ossification of the Posterior Longitudinal Ligament of Spine ) technology today, Fiberspace has made an exciting stride in wavelength stabilization for semiconductor lasers. The OPLL technology platform makes it possible to increase the transmission capacity of existing fiber lines and lower the cost per bit by maximizing the efficiency of optical spectrum use. Fiberspace's patented OPLL technology provides long-term wavelength stability and absolute accuracy in a tunable laser A laser that can change its frequency over a given range. In time, tunable lasers are expected to be capable of switching frequencies on a packet by packet basis. platform for ultra-dense WDM (1) (Wavelength Division Multiplexing) A technology that uses multiple lasers and transmits several wavelengths of light (lambdas) simultaneously over a single optical fiber. (wavelength division multiplexing See WDM. (communications) wavelength division multiplexing - (WDM) Multiplexing several Optical Carrier n signals on a single optical fibre by using different wavelengths (colours) of laser light to carry different signals. ) applications in metro and long-haul networks. "Service providers can benefit from a technology that provides long-term wavelength stability and absolute accuracy," said Vladimir Kozlov, RHK's Senior Analyst in Global Components. "As providers continue to tighten budgets, they'll want to produce optimum results from their existing network infrastructure. A technology platform like the Fiberspace OPLL could be invaluable in realizing maximum bandwidth from the installed fiber base." Wavelength stability performance of OPLL enables ultra-dense channel spacing (e.g. OC-192 at 12.5 GHz) providing higher channel counts and increasing the amount of data transmitted over a single fiber. Wavelength drift can cause significant transmission impairments in closely spaced WDM systems due to adjacent channel interference and filter induced distortions. As channel density increases and channel spacing decreases, individual channel wavelengths need to be very accurately tuned, and absolute stability of those wavelengths must be maintained over long periods of time. According to Fiberspace CEO (1) (Chief Executive Officer) The highest individual in command of an organization. Typically the president of the company, the CEO reports to the Chairman of the Board. Leonardo Berezovsky, "Ultra-dense WDM systems support favorable economics by improving the transmission performance of installed optical components. The wavelength stability from OPLL is well suited to meet the tight wavelength control requirements of developing applications in high spectral efficiency optical networks." The OPLL technology platform supports the deployment of next generation tunable lasers by providing absolute accuracy of laser wavelengths over wide regions of the optical spectrum. Tunable lasers are an important technology for managing cost and optimizing performance of closely spaced WDM systems, but tunable lasers must also provide excellent long-term stability before they can be considered as viable candidates for WDM network installations. "We are developing advanced measurement techniques for wide bandwidth optical reference designs and sophisticated ways to determine and maintain WDM channel wavelengths," explained Brad Mells, CTO (Chief Technical Officer) The executive responsible for the technical direction of an organization. See CIO and salary survey. of Fiberspace. "These capabilities enable tunable laser applications while providing the high degrees of absolute wavelength accuracy and stability that are required for ultra-dense WDM systems." In addition, OPLL enables increased forward error correction A communications technique that can correct bad data on the receiving end. Before transmission, the data are processed through an algorithm that adds extra bits for error correction. If the transmitted message is received in error, the correction bits are used to repair it. (FEC See forward error correction. FEC - Forward Error Correction ) coding gain by improving stability performance. Only by utilizing highly stable and accurate laser sources can the additional bandwidth required by FEC be compatible with the narrow filter bandwidths needed for ultra-dense WDM optics. Thus high stability laser technology is a critical component to extend the distance between expensive OEO (Optical in Electrical processing Optical out) Refers to network devices that convert photonic transmission signals to electronic signals in order to analyze the traffic content for switching purposes. It then reconverts the signal to light for output. Contrast with OOO. (optical-electrical-optical) regenerators while managing nonlinearities in high spectral efficiency fiber optic transmissions. By combining OPLL technology with advanced FEC, network operators can enjoy increased capacity with minimal impact on the existing network installation. About Fiberspace Fiberspace Inc., creates and builds stabilized laser products based on its patented laser technology. The company is developing a suite of products that provide absolute accuracy, tunability, and long-term wavelength stability for dense wavelength division multiplexing See WDM. (DWDM (Dense WDM) The term given to wavelength division multiplexing (WDM) when significantly more channels were being added. Since WDM is increasingly more "dense" all the time, both terms are used synonymously. See WDM. DWDM - wavelength division multiplexing ) applications in metro and long-haul systems. Fiberspace investors include J.P. Morgan Chase Capital and Morgenthaler Ventures. Fiberspace is headquartered in Woodland Hills, Calif. For more information, visit http://www.fiberspace.net or call 818/251-1300. |
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