Mitsubishi Electric Introduces 40 Gbps DQPSK Photodiode Module for Optical Communication Networks

Mitsubishi Electric has introduced a power-conserving, compact 40 Gbps differential quadrature phase shift keying (DQPSK) photodiode (PD) module, the FU-387SPP, for optical signal reception in broadcast equipment utilized to transmit huge volumes of data between metropolitan regions.

Mitsubishi Electric will introduce the FU-387SPP in June 1, 2011. The company anticipates to market nearly 500 units every month. The module features two trans-impedance amplifiers and four photodiodes in a single housing that measures 11.0x14.9x6.7 mm. This contributes to the reduced size of optical transmission device.

Transmission equipment normally utilizes two PD modules as a pair, each consisting of two trans-impedance amplifiers and two photodiodes. The energy-saving equipment consumes only 0.6 W of power at 25° C. It has 3.3 V singularity voltage sources of supply voltage and PD bias voltage for trans-impedance amplifiers. It has a broad detection range between 1520 and 1610 nm.

The FU-387SPP offers ultra-quality, reliable signal for long distance optical transmission. It features latest surface-illuminated photodiodes to offer low polarization dependent loss of less than or equal to 0.1 dB. It exhibits a bit error ratio of 1.3x10-8 (Q=14.9dB) and PD responsivity of 0.85A/W.

Mitsubishi Electric will launch an optical signal-transmitting laser diode module in the near future. It will operate on the other end of the line from the FU-387SPP.

Source: http://www.mitsubishielectric.com

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