光电工程
光電工程
광전공정
OPTO-ELECTRONIC ENGINEERING
2014年
9期
81-86
,共6页
平均芬%胡劲华%高国贤%刘恺
平均芬%鬍勁華%高國賢%劉愷
평균분%호경화%고국현%류개
光轨网络%无源集成芯片%平面光波导%微环谐振器%热光效应
光軌網絡%無源集成芯片%平麵光波導%微環諧振器%熱光效應
광궤망락%무원집성심편%평면광파도%미배해진기%열광효응
light-trails network%passive integrated chip%planar waveguide%microring resonator%thermo-optical effect
光轨是一种新型光通信网络结构，具有交换粒度小、带宽利用率高等优点。本文提出一种应用于通信C波段的新型光轨节点无源集成芯片，支撑1545 nm、1550 nm和1555 nm三个C波段波长的通信。该新型光轨节点无源集成芯片是一种基于SOI纳米波导材料的片上微器件系统，核心器件由基于微环谐振器的解复用器和基于马赫-泽德尔干涉仪的环加强型热光光开关构成。通过理论计算和软件仿真，分别分析了解复用器和光开关的光学和通信性能，结果显示微环解复用器3个波长信道的串扰分别为22.5 dB、16.9 dB和16.3 dB；光开关的消光比分别为16.6 dB、19.7 dB和21.5 dB；插入损耗分别为0.86 dB、0.85 dB和0.68 dB，功耗约为51 mW。
光軌是一種新型光通信網絡結構，具有交換粒度小、帶寬利用率高等優點。本文提齣一種應用于通信C波段的新型光軌節點無源集成芯片，支撐1545 nm、1550 nm和1555 nm三箇C波段波長的通信。該新型光軌節點無源集成芯片是一種基于SOI納米波導材料的片上微器件繫統，覈心器件由基于微環諧振器的解複用器和基于馬赫-澤德爾榦涉儀的環加彊型熱光光開關構成。通過理論計算和軟件倣真，分彆分析瞭解複用器和光開關的光學和通信性能，結果顯示微環解複用器3箇波長信道的串擾分彆為22.5 dB、16.9 dB和16.3 dB；光開關的消光比分彆為16.6 dB、19.7 dB和21.5 dB；插入損耗分彆為0.86 dB、0.85 dB和0.68 dB，功耗約為51 mW。
광궤시일충신형광통신망락결구，구유교환립도소、대관이용솔고등우점。본문제출일충응용우통신C파단적신형광궤절점무원집성심편，지탱1545 nm、1550 nm화1555 nm삼개C파단파장적통신。해신형광궤절점무원집성심편시일충기우SOI납미파도재료적편상미기건계통，핵심기건유기우미배해진기적해복용기화기우마혁-택덕이간섭의적배가강형열광광개관구성。통과이론계산화연건방진，분별분석료해복용기화광개관적광학화통신성능，결과현시미배해복용기3개파장신도적천우분별위22.5 dB、16.9 dB화16.3 dB；광개관적소광비분별위16.6 dB、19.7 dB화21.5 dB；삽입손모분별위0.86 dB、0.85 dB화0.68 dB，공모약위51 mW。
Light-trail is a novel optical network and promises smaller switching granularity and better bandwidth utilization. A novel integrated LT node chip that supports 3 C waveband wavelengths for duplex communication is introduced. The light-trail node chip is developed in SOI platform with the optical circuits based on Si waveguide, and it is a kind of hybrid integrated positive optical components including MMI coupler, MUX/DEMUX based on the microring resonators and the optical switches based on Mach-Zehnder interferometer (MZI). The two key devices on the light-trail node chip are the microring-based MUX/DEMUX and the optical switch. We theoretically analyzed and designed MUX/DEMUX based on the microring resonators, and the simulation results showed that MUX/DEMUX based on the microring resonators had lower crosstalk with 22.5 dB, 16.9 dB and 16.3 dB for 1 545 nm, 1 550 nm and 1 555 nm channels. We also designed an optical switch based on MZI with a microring resonator based on an interference arm. The thermo-optical effect was used to control the coupling between the microring and the straight waveguide (i.e. the interference arm) and then control ON/OFF of the optical switch. The simulation results showed that the switch had very low power consumption of 51 mW, and its extinction ratio were 16.6 dB, 19.7 dB and 21.5 dB for 1 545 nm, 1 550 nm and 1 555 nm wavelengths. In addition, the insertion losses of the optical switch were 0.86 dB, 0.85 dB and 0.68 dB for three optical cannels.
