Optoplex Corporation, a leading supplier of innovative fiber-optic components for the next-generation communication systems, announces its second-generation product, a dual-rate DPSK demodulator suitable for adaptive-DPSK systems.

Telecom service providers have been slowly migrating to the 40-Gb/s optical transmission equipment over the last year as more advanced phase-based (DPSK and DQPSK) modulation technologies become more mature. A new architecture conceived for DWDM transceiver with 50-GHz channel spacing, adaptive-DPSK, has recently emerged. One issue with DPSK is that it is not as spectrally efficient as duobinary or DQPSK and suffers when transmitted through 50-GHz channel spacing as used in 10-Gbit/s 80-wavelength DWDM networks.

Coming to rescue is Optoplex’s dual-rate DPSK demodulator. This new, compact, and intelligent component allows the adaptive-DPSK transceiver to change the delay between consecutive bits for efficient transmission through 50-GHz filters with the delay optimized based on the number of filter stages that the signals go through. The technology that the dual-rate demodulator is based on also paves the path to the multi-rate DPSK demodulators.

During this week’s Optical Fiber Communication Conference and Exposition (OFC) in San Diego, CA, Optoplex (at Booth# 2642) welcomes optical transport systems and subsystems providers to visit and discuss their needs in making their choices of 40-Gb/s components.

Optoplex provides customized solutions to telecom network equipment and testing instrument providers for wavelength routing and signal conditioning. Current product families include DPSK demodulator/Delay line interferometer (DLI), DQPSK demodulator, 90-degree optical hybrid, Optical interleaver, Tunable optical filter / Reconfigurable optical add/drop multiplexer (ROADM), Optical performance monitor (OPM) / Optical channel monitor (OCM).

For more information, please write to info@optoplex.com or call (510) 490-9930.