QQ客服 官方微博 反馈留言

	Passive thermal stabilization for an optical mux/demux
	XIE, PING
	2004-01-06
著作权人	FINISAR CORPORATION
专利号	US6674968
国家	美国
文献子类	授权发明
其他题名	Passive thermal stabilization for an optical mux/demux
英文摘要	A method and apparatus for multiplexing/de-multiplexing optical signals is disclosed. The method and apparatus are applicable to a range of optical multiplexing techniques including, but not limited to: wavelength division multiplexing (WDM), dense wavelength division multiplexing (DWDM) and frequency division multiple accessing (FDMA). The disclosed devices do not require active components. The disclosed devices may be implemented with fiber or fiberless optical communication systems including telecommunications systems. The devices may be used on their own or as part of a larger system such as a multi-stage mux/demux, an optical switch, or router. Additionally, the devices are passively thermally stabilized with the result that their tuning is substantially invariant across a wide temperature range.The optical device includes a linear polarizer, at least one wave plate and a beam displacer/combiner. The wave plate optically couples to the linear polarizer and rotates both odd and even channel components of an optical beam between a linear and an orthogonal relationship depending on the propagation direction. The wave plate includes a primary and a compensating birefringent element with respective first and second lengths and first and second indices of refraction. The first and second lengths and the first and second indices of refraction together determinative both of a free spectral range for the at least one wave plate corresponding to a spacing between adjacent gridlines of the selected wavelength grid, and of a combined optical pathlength difference for the wave plate substantially invariant with temperature.
公开日期	2004-01-06
申请日期	2000-01-06
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/36618]
专题	半导体激光器专利数据库
作者单位	FINISAR CORPORATION
推荐引用方式 GB/T 7714	XIE, PING. Passive thermal stabilization for an optical mux/demux. US6674968. 2004-01-06.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。