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Wavelength Division Multiplexing

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This section contains examples of wavelength division multiplexing (WDM) circuits. Wavelength division multiplexing is a method of modulating multiple signals at different wavelengths (channels) to transmit them on a single waveguide or fiber.

 

Related publications

[1]Knights, A.P.; Huante-Ceron, E.; Ackert, J.; Logan, D.; Wojcik, G.; Feng Zhang; Gubenko, A.; Mikhrin, S., "Comb-laser driven WDM for short reach silicon photonic based optical interconnection," Group IV Photonics (GFP), 2012 IEEE 9th International Conference on , vol., no., pp.210,212, 29-31 Aug. 2012.

[2]Fang Q, Phang YT, Tan CW, Liow TY, Yu MB, Lo GQ, Kwong DL, “Multi-channel silicon photonic receiver based on ring-resonators”, Opt Express. 2010 Jun 21;18(13):13510-5. doi: 10.1364/OE.18.013510.

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Introduction

To begin with, we assume that we have the element parameters from a known process design kit (PDK). The goal is to be able to design an 8-channel WDM system using 25 Gbps per channel, using a comb laser as the input [1], cascaded ring modulators with a free spectral range (FSR) of about 1.1 THz to modulate the signal and multiplex, and cascaded ring resonators to demultiplex [2]. The following examples start with a single channel system and works up to 8 channels.

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