CWDM SFP optical transceivers hit production

Sumitomo Electric Industries is now shipping production volumes of small form-factor pluggable optical transceivers for coarse wavelength-division multiplexing applications.

Sumitomo Electric Industries is now shipping production volumes of small form-factor pluggable (SFP) optical transceivers for coarse wavelength-division multiplexing (CWDM) applications.

The transceivers are available in eight ITU-compliant CWDM wavelengths from 1470 to 1610nm.

Transceivers for eight additional wavelengths in the 1300nm region will be available later this year.

Using SEI's high-performance, uncooled DFB lasers and optimum thermal design of devices and circuitry, the transceivers combine excellent transmission characteristics and low cost.

Supporting 1.25Gbit/s Gigabit Ethernet, 2.5Gbit/s STM-16/OC-48 and 2.7Gbit/s STM-16/OC-48 with FEC, the transceivers achieve transmission distances of 40km with a PIN photodiode receiver or 80km with an avalanche photodiode.

To ease application and operation, the transceivers include built-in digital diagnostic functions and operate from a single 3.3V DC supply.

They comply fully with the SFP multisource agreement.

The new CWDM transceivers extend SEI's already broad line of SFP transceivers for data and telecomms applications.

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