Tunable laser combines accuracy and stability

March 12, 2002
March 12, 2002--Fiberspace Inc. has announced the Gridlocker, which it describes as the first tunable semiconductor laser that provides "exceptional wavelength accuracy and stability in a high reliability laser source." The company says the device provides the performance needed for long-haul DWDM systems, high spectral efficiency, and lower cost of ownership of high-capacity systems.

March 12, 2002--Fiberspace Inc. (www.fiberspace.net) has announced the Gridlocker, which it describes as the first tunable semiconductor laser that provides "exceptional wavelength accuracy and stability in a high reliability laser source." The company says the device provides the performance needed for long-haul DWDM systems, high spectral efficiency, and lower cost of ownership of high-capacity systems.

The ±250 MHz accuracy of the device enables the deployment of closer channel spacing (e.g., 25 GHz and 12.5 GHz) to increase transmission capacity while reducing the cost per bit of signal bandwidth. In such applications, the Gridlocker's 16-channel (3 nm) tuning reduces costs by cutting the number of spare line cards needed for backup. Gridlocker also enables remote provisioning in advanced network topologies by allowing installed lasers to be dynamically tuned to different wavelength channels.

The accuracy and stability features of the Gridlocker are based on the company's patented Optical Phase Locked Loop (OPLL) technology. The feedback loop incorporates a tuned Fabry-Perot etalon to provide a sharp optical frequency reference that maintains a high degree of absolute wavelength stability. OPLL stabilizes the laser frequency by utilizing FM techniques to derive a phase-dependent error signal that locks the laser frequency to the peak of the Fabry-Perot transmission.

The Gridlocker technology will be publicly demonstrated for the first time at the upcoming Optical Fiber Communications (OFC) Conference in Anaheim, CA, March 19-22, 2002, at booth number 2567. Engineering samples will be available in May 2002, and general availability is expected in the fourth quarter of 2002.

Sponsored Recommendations

Coherent Routing and Optical Transport – Getting Under the Covers

April 11, 2024
Join us as we delve into the symbiotic relationship between IPoDWDM and cutting-edge optical transport innovations, revolutionizing the landscape of data transmission.

Data Center Network Advances

April 2, 2024
Lightwave’s latest on-topic eBook, which AFL and Henkel sponsor, will address advances in data center technology. The eBook looks at various topics, ranging...

Supporting 5G with Fiber

April 12, 2023
Network operators continue their 5G coverage expansion – which means they also continue to roll out fiber to support such initiatives. The articles in this Lightwave On ...

FTTx Deployment Strategies

March 29, 2023
Cable operators continue to deploy fiber in their networks at anincreasing rate. As fiber grows in importance, proper choices regardinghow to best fit fiber to the home together...