CAPEX Benefits of Colorless Directionless ROADM in WDM Transport Networks

She, Qingya; Zhang, Qiong; Rundberget, Kirsten

doi:10.1364/nfoec.2013.nth4j.3

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“…T HE M×N wavelength selective switch (WSS) is one of the core optical components of the new generation of reconfigurable optical add/drop multiplexer (ROADM) [1], [2], [3], [4] and optical cross-connect (OXC) [5], [6], [7], can greatly reduce the construction, operation and maintenance costs of multi-dimensional optical nodes. In addition, the accurate spectral manipulation capability of M × N WSS can greatly improve the network expansion function and networking flexibility of optical nodes.…”

Section: Introductionmentioning

confidence: 99%

LCOS-Based 3 × 3 Folded Wavelength Selective Switch With High-Resolution Spectral

Gao

Chen

2023

IEEE Photonics J.

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We propose and experimentally verify a 3 × 3 folded wavelength selective switch (WSS) scheme based on liquid crystal on silicon spatial light modulator (LCOS-SLM). This scheme adopts a concise double-layer folded structure that greatly reduced the structural complexity of the WSS system by using the same set of optical elements to accomplish twice beam deflection. The presented WSS is for the C-band, insertion loss is less than 13.2 dB, the spectral resolution is 1 GHz, the bandwidth tuning range is 16.25∼3750 GHz.

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