Optoplex Ships Dual-Rate DPSK

Optoplex demodulator goes dual-rate

February 25, 2008

1 Min Read

FREMONT, Calif. -- 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 mature. A new architecture conceived for DWDM transceiver compatible 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 format and suffers when transmitted through 50-GHz channel spacing as already used in 10-Gb/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 the consecutive bits for more efficient transmission through 50-GHz filters with the delay optimized based on the number of filter stages that the signals go through. The technology platform 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 Corp.

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