淡江大學機構典藏:Item 987654321/122214
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/122214


    Title: Protection Scheme for a Wavelength-Division-Multiplexed Passive Optical Network Based on Reconfigurable Optical Amplifiers
    Authors: Hong-Sing Lee;Chun-Liang Yang;Chien-Hsiang Chou
    Keywords: optical amplifier;reconfigurable optical amplifier;wavelength-division-multiplexed passive optical network;optical amplifier protection
    Date: 2021-12-31
    Issue Date: 2022-02-24 12:10:20 (UTC+8)
    Abstract: This paper demonstrates a wavelength-division-multiplexed passive optical network (WDM-PON) scheme based on novel reconfigurable optical amplifiers (ROAs). The measured switching characteristics of the ROA3 constructed with a 2 × 2 crossbar optical switch and a four-port reversible optical circulator (OC) and a conventional EDFA can meet the requirements of most network management and surveillance. The self-made four-port reversible OC’s response time is less than 2 ms, and its insertion losses are about 1 dB or less for all the transmission paths and switching states. An optimal design of ROAs is proposed and evaluated for bidirectional optical amplifier protection, in which ROA3 has an EDF length of 7.5 m long with a 1480 nm pump laser and possesses a backward or forward pumping configuration with the corresponding pump power of 200 mW or 50 mW. We verified the scheme’s feasibility through a simulation of WDM-PON systems with 40 downstream and upstream channels. This scheme enables the intelligent protection switching in practical operation scenarios for high-capacity multi-wavelength networks.
    Relation: Applied Sciences 12(1), 365
    DOI: 10.3390/app12010365
    Appears in Collections:[Graduate Institute & Department of Electrical Engineering] Journal Article

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