Bi-directional SFF optical transceivers

14 June 2006 Opto-Electronics

Back in 2003, Murata described a newly-developed light-transmitting polycrystalline ceramic material it had developed.

From this, the company now produces a series of optical transceivers for bi-directional transmission of data on a single fibre. Called the WTF series, it also meets the requirements of SFF and MSA specifications.

According to the company, the refractive index of the material is 2,074, which is not achievable in commercially-available optical glass, and the high light transmittance factor is almost equivalent to the theoretical value over the range from visible to infrared wavelengths (~400-6000 nm). These factors contribute to a reduction in size and thickness of the optical elements.

The new WTF series provides various combinations of Rx and Tx wavelengths, each reversible, and for AC or DC coupling. Optical output power is -3 to +2 dBm and transmission speed is 1,25 Gbps. AC and DC coupling for electrical interface are available and power supply is 3,3 V.

The package has a 13,5 X 48,5 mm footprint and is 9,7 mm high with a 2 x 5-pin configuration, compliant with MSA specifications.

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