VSK Photonics unveils new ROSAs for 10-Gbit/sec applications

17 October 2003 Lake Forest, CA Lightwave -- VSK Photonics Inc. recently unveiled a line of receiver optical sub-assemblies (ROSAs) for 10-Gbit/sec fiber-optic communication systems. According to the company, the new ROSAs are designed to optimize the performance of short reach 10-Gbit/sec transceivers utilizing electronic dispersion compensation.

17 October 2003 Lake Forest, CA Lightwave -- VSK Photonics Inc. recently unveiled a line of receiver optical sub-assemblies (ROSAs) for 10-Gbit/sec fiber-optic communication systems. According to the company, the new ROSAs are designed to optimize the performance of short reach 10-Gbit/sec transceivers utilizing electronic dispersion compensation.

The VSK10R07-06 ROSA for multimode incorporates a high-performance photodetector with a linear pre-amplifier to provide excellent performance in 1310- and 1550-nm systems, says the company. VSK's proprietary chip design enhances performance in multimode systems with off-axis launch. With a bandwidth of 8 GHz, a sensitivity of -13 dBm, and dynamic range >15 dB, the VSK10R07-06 exceeds all performance requirements for OC-192-SR1 transceiver modules.

The VSK10R09-06 ROSA specified for singlemode optical fiber systems operates at 1310 and 1550 nm. The device achieves a sensitivity of -17 dBm, 19 dB of dynamic range, and a bandwidth of 8 GHz. The VSK10R09-06 ROSA exceeds all performance criteria for 10-Gbit/sec Ethernet LR and ER transceivers, says the company, delivering performance comparable to more costly pigtailed receiver modules.

VSK's singlemode and multimode ROSAs are both available in 5-pin TO-46 headers with a cap and sleeve. Configured to mate with LC connectors, the packaging is designed to deliver optimum high-speed performance. Engineering samples are shipping, with full production slated to begin in the fourth quarter of 2003.

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