摘要
光纤作为光信号传输媒介，其具有传输速率高、信息量大等优点，因而在通信领域得到了广泛应用。在此背景下，为满足光纤通信系统的使用要求，对该系统中的帯通滤光膜进行研制。选用Ta2O5和SiO2作为镀膜材料，设计了含有5个谐振腔的带通滤光膜，分析并解决了耦合层膜厚监控的问题。制备的帯通滤光膜在1479～1504 nm 处插入损耗小于0.3 dB，1260～1450 nm 与1530～1620 nm 处透射隔离度分别大于39 dB和31 dB，满足该系统使用要求。
As a transmission media of communication, optical fiber communication is widely used in people′s lives for its high transmission rate, large amount of information. Under this background, the band-pass filter film is made to satisfy the requirements for the laser communication system. Using Ta2O5 and SiO2 as coating materials, the bandpass filter which has five resonators is designed and the thickness of coupling layers are monitored by analyzing and solving the question of material stress match. The insertion loss of the filter is less than 0.3 dB at from1479 nm to 1504 nm and the transmission isolation is higher than 39 dB and 31 dB at from 1260 nm to 1450 nm and from 1530 nm to 1620 nm, which meets requirement of the system.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2016年第3期118-123,共6页
Chinese Journal of Lasers
基金
长春市科技发展计划项目(2014219)
关键词
薄膜
带通滤光膜
谐振腔
耦合层
thin films
band-pass filter
resonator
coupling layers
