Variable ratio fiber optic coupler optical signal processing element

OPT OpenIR > 半导体激光器专利数据库

	Variable ratio fiber optic coupler optical signal processing element
其他题名	Variable ratio fiber optic coupler optical signal processing element
	GERDT, DAVID W.
	1992-08-04
专利权人	SPERRY MARINE INC., A CORP OF DE
公开日期	1992-08-04
授权国家	美国
专利类型	授权发明
摘要	The coupler includes a waist region formed by merging and fusing a plurality of optical fibers with the waist region encapsulated in photorefractive encapsulating material. The index of refraction of the encapsulating material is modulated by applying illumination thereto, so as to vary the coupler output ratio. The applied illumination can direct the coupler output from one output fiber to another output fiber thereby providing an optically actuated switch. The illumination applied to the encapsulating material can direct a large optical power signal applied to an input fiber from one output fiber to another output fiber thereby providing an optical amplifier analogous to a transistor. One of the output fibers of the element can be utilized to provide the encapsulating material illumination thereby providing an optical feedback oscillator. Bias illumination applied to the encapsulating material results in a narrow band of a broadband input optical signal to be directed to an output fiber thereby providing an externally tuned spectrometer or optically tuned wavelength division demultiplexer. An input optical signal can correlate with the illumination applied to the encapsulating material to provide an optical correlator. In an element with encapsulating material that is both photoelastic and photorefractive, or both bend sensitive and photorefractive, the photorefractive effect can be utilized to bias the device to a predetermined point on the operating curve irrespective of applied stress. Networks of the optical signal processing elements can be interconnected to provide computing systems.
其他摘要	耦合器包括通过将多个光纤合并和熔合而形成的腰部区域，其中腰部区域封装在光折变封装材料中。通过对其施加照射来调制封装材料的折射率，从而改变耦合器输出比。所施加的照明可以将耦合器输出从一个输出光纤引导到另一个输出光纤，从而提供光学驱动的开关。施加到封装材料的照射可以将从一个输出光纤施加到输入光纤的大光功率信号引导到另一个输出光纤，从而提供类似于晶体管的光放大器。元件的输出光纤之一可用于提供封装材料照明从而提供光学反馈振荡器。施加到封装材料的偏置照射导致宽带输入光信号的窄带被引导到输出光纤，从而提供外部调谐的光谱仪或光学调谐的波分多路分解器。输入光学信号可以与施加到封装材料的照射相关联，以提供光学相关器。在具有光弹性和光折变的封装材料的元件中，或者既弯曲敏感又光折变的元件中，可以利用光折变效应将器件偏置到工作曲线上的预定点，而不管施加的应力如何。光信号处理元件的网络可以互连以提供计算系统。
授权日期	1992-08-04
申请日期	1991-03-15
专利号	US5136669
专利状态	失效
申请号	US07/670549
公开（公告）号	US5136669
IPC 分类号	G02F1/29 \| G02F1/313 \| G06E3/00 \| G02F1/01 \| G02B6/26
专利代理人	-
代理机构	LEVINE, SEYMOUR COOPER, ALBERT B.
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/36033
专题	半导体激光器专利数据库
作者单位	SPERRY MARINE INC., A CORP OF DE
推荐引用方式 GB/T 7714	GERDT, DAVID W.. Variable ratio fiber optic coupler optical signal processing element. US5136669[P]. 1992-08-04.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
US5136669.PDF（967KB）	专利		开放获取	CC BY-NC-SA	请求全文