2x4 QPSK Mixer

Optoplex's 2X4 polarisation diversified optical hybrid (aka QPSK Mixer) is a 2x4 device, which mixes an incoming signal with a local oscillator. The 4 outputs of this device are connected to 4 single-ended detectors (see the function diagram below). The device features a monolithic optical core integrating a PBS with an interferometer which is also widely used in Optoplex's interleaver and DPSK-demodulator platforms. This device is athermal, colourless, data-rate independent, compact in size and designed for manufacturability. This platform can also be extended to a 2X8 polarisation diversified hybrid to incorporate with 4 pairs of balanced detectors.Features

• Purely passive device (no need for external electric power)
• Compact size
• Based on free-space bulk-optics design

Applications

• For the next-generation optical transmission system
• Key component for the optical coherent detection (a detection format which has been widely used in many other communication methods, such as radio and wireless)

For more information on 2x4 QPSK Mixer talk to BBN International Ltd