发明名称 Wavelength and bandwidth tunable optical system
摘要 A system for modifying an input optical signal by reducing its bandwidth and modifying its central wavelength has an optical circulator with at least three ports and at least two optical filters coupled to consecutive ports of the circulator. The first filter produces a predetermined reflected band off the input optical signal. The second filter produces a predetermined transmission band as a part of the reflected band. Either or both of the optical filters are tunable to shape and trim the input signal in a predetermined manner. A multi-channel and cascade configurations may be formed. The system may serve e.g. as a tunable filter or as an add/drop module in WDM communication networks.
申请公布号 US5841918(A) 申请公布日期 1998.11.24
申请号 US19960703034 申请日期 1996.08.26
申请人 JDS FITEL INC. 发明人 LI, JINGHUI
分类号 G02B6/34;(IPC1-7):G02B6/28 主分类号 G02B6/34
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