Abstract

This article demonstrates the design, assembly, optimisation, and characterisation of 24 [1 × 12] wavelength selective switches (WSSs) based on a single set of optics and a 4k liquid crystal on silicon (LCoS) device. The average insertion loss was measured to be 8.4 dB with an average crosstalk level of 26.9 dB. To our knowledge, this module with 312 fibre ports is the highest-capacity WSS demonstrated so far. The module can be flexibly reconfigured into different switches and port counts for advanced reconfigurable optical add/drop multiplexer (ROADM) applications.

Small phase pattern 2D beam steering and a single LCOS design of 40 1 × 12 stacked wavelength selective switches

Haining Yang, Brian Robertson, Peter Wilkinson, and Daping Chu
Opt. Express 24(11) 12240-12253 (2016)

Low-Cost CDC ROADM Architecture Based on Stacked Wavelength Selective Switches

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Compact and phase-error-robust multilayered AWG-based wavelength selective switch driven by a single LCOS

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Integrated silicon photonic wavelength-selective switch using wavefront control waveguides

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Opt. Express 26(10) 13573-13589 (2018)

Research of two-dimensional beam steering in LCOS-based wavelength selective switch

Dongtang Yang, Cheng He, Zean Jing, and Fengguang Luo
Appl. Opt. 54(14) 4411-4416 (2015)