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	Polarization-independent, environmentally stable optical fiber narrow band multi-window wavelength division multiplexer based on biconical tapered fusion coupler technology
	HUANG, CHI-HUNG; HUANG, ROBERT I.; CHON, JOSEPH C.
	2002-12-24
著作权人	WAVESPLITTER TECHNOGIES, INC
专利号	US6498879
国家	美国
文献子类	授权发明
其他题名	Polarization-independent, environmentally stable optical fiber narrow band multi-window wavelength division multiplexer based on biconical tapered fusion coupler technology
英文摘要	A structure and method are provided to improve stability of a multi-window dense wavelength division multiplexers and to provide polarization-independent multi-window dense wavelength division multiplexers. In one embodiment, the coupler region of a multi-window wavelength division multiplexer (MWDM) is hermetically sealed in a protective casing to prevent moisture from affecting the passband wavelength drifting in the coupler. In one embodiment, the coupler is elastically twisted at the fused fiber portion to reach polarization cancellation. In another embodiment, the coupling region of the coupler is exposed to UV-radiation for passband wavelength adjustment. In yet another embodiment, a passive thermal compensation technique is used to minimize the thermal effect on the passband wavelengths for dense WDM applications. In a further embodiment, the coupler is mounted on the substrate using soft adhesives in conjunction with rigid adhesives, to improve mechanical shock protection.
公开日期	2002-12-24
申请日期	1999-03-31
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/36561]
专题	半导体激光器专利数据库
作者单位	WAVESPLITTER TECHNOGIES, INC
推荐引用方式 GB/T 7714	HUANG, CHI-HUNG,HUANG, ROBERT I.,CHON, JOSEPH C.. Polarization-independent, environmentally stable optical fiber narrow band multi-window wavelength division multiplexer based on biconical tapered fusion coupler technology. US6498879. 2002-12-24.

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