24 [1×12] Wavelength Selective Switches Integrated on a Single 4k LCoS Device
Haining Yang, Peter Wilkinson, Brian Robertson, Sam Giltrap, Oliver Snowdon, Harry Prudden, Daping Chu
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.
Topics & Concepts
Liquid crystal on siliconMultiplexerWavelength-division multiplexingOptical switchMaterials scienceInsertion lossOptical add-drop multiplexerCrosstalkOptoelectronicsMultiplexingOpticsIntegrated opticsElectronic engineeringWavelengthComputer scienceLiquid crystalOptical performance monitoringEngineeringPhysicsOptical Network TechnologiesPhotonic and Optical DevicesSemiconductor Lasers and Optical Devices