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一、引言用单模星形耦合器进行交换和分配信息的各种系统方案现正相继提出,如西柏林海茵利希·赫芝研究所修订了采用光交换技术实验方法的研究计划,在窄带业务和高速率数据业务的综合局部通信系统中采用单模星形耦合器进行光交换。单模星形耦合器的原理是以单模光纤作传输介质的LiNbO_3。光开关为依据的,但单模光纤星形耦合器的结构原理却不同于渐变型光纤星形耦合器。
I. INTRODUCTION Various system solutions for exchanging and distributing information using a single-mode star coupler are now being put forward one after another. For example, the Heinrich Hechi Institute of West Berlin has revised its research plan of experimental methods using optical switching technology, Single-mode star coupler for optical switching in integrated local communication systems for business and high-rate data services. Single-mode star coupler principle is based on single-mode fiber as the transmission medium of LiNbO_3. Optical switch based, but the single-mode fiber star coupler structure principle is different from the gradient fiber star coupler.