Coarse Wavelength Division (De)Multiplexer

Silicon photonics enabled. 

Analog Photonics developed a 4-channel coarse wavelength division multiplexer (CWDM4 MUX) and demultiplexer (CWDM4 DEMUX). These are very compact and high-performance solutions for optical fiber communication applications. Utilizing silicon photonics technology, AP’s CWDM4 MUX/DEMUX are optimized for low-cost and high-volume production.

AP’s wavelength (de)multiplexers have exceptional performance.

Compact footprint.

The silicon photonics chips at the heart of the CWDM4 multiplexer are only 3.8mm by 1.5mm. Due to the higher index contrast waveguides, the device’s footprint can be kept smaller compared to PLC based multiplexers.

Low polarization dependent loss.

Analog Photonics has optimized the silicon photonics technology to enable polarization independent operation. The CWDM4 demultiplexer has a polarization dependent loss of less than 0.3 dB.

Low channel crosstalk.

The CWDM4 demultiplexer has a remarkable low crosstalk of less than -25dB with a channel bandwidth of 14nm. Future devices are expected to have a crosstalk below -30dB.

Temperature resilient.

Low temperature-dependent center wavelength shift (<0.017nm/˚C).

Typical performance of the silicon photonics CWDM4 demultiplexer.

2018 Pal prototype mounted on a car. It can sense a pedestrian up to 200m.

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