Continuously variable fiber optic delay line

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	Continuously variable fiber optic delay line
其他题名	Continuously variable fiber optic delay line
	SHAW, HERBERT, JOHN; BOWERS, JOHN, E.; NEWTON, STEVEN, A.
	1984-11-28
专利权人	THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
公开日期	1984-11-28
授权国家	欧洲专利局
专利类型	发明申请
摘要	A continuously variable optical delay line having a first substrate (66, 70) and a second substrate (95). The first substrate is composed of a quartz block (70) with a large radius of curvature along its length, supporting a silicon substrate (66) having a plurality of longitudinal, parallel v-grooves (68). A single length (121) of single mode optical fiber is wrapped around the first substrate (66, 70) in helical fashion with each loop being secured in one of the v-grooves (68). The portions of the fiber (121) in the v-grooves (68) are lapped and polished to create a flat coupling surface extending laterally and longitudinally across the first substrate (66, 70). The second substrate (91) is composed of a quartz block with a single v-groove holding a segment of single mode fiber (95). The radius of curvature of this v-groove is substantially smaller than that of the first substrate, such that the flat coupling surface of the second substrate (91) is shorter than that of the first substrate (66). The first and second substrates are placed together such that the fiber in the second substrate is coupled to the fiber in the first substrate. By moving (142) the second substrate longitudinally with respect to the first substrate, a continuously variable delay can be obtained. The continuously variable delay line can be combined with a separate discretely variable delay line to create a longer continuous variable delay. The continuous variable delay line can be formed with only one v-groove (68) in the first substrate (66). fjdkfjdkfdjf
其他摘要	一种连续可变光学延迟线，具有第一基板（66,70）和第二基板（95）。第一基板由沿其长度具有大曲率半径的石英块（70）组成，支撑具有多个纵向平行V形槽（68）的硅基板（66）。单个长度（121）的单模光纤以螺旋方式缠绕在第一基板（66,70）周围，每个环固定在一个V形槽（68）中。将V形槽（68）中的纤维（121）的部分研磨并抛光，以形成横跨第一基板（66,70）横向和纵向延伸的平坦耦合表面。第二基板（91）由石英块构成，该石英块具有保持一段单模光纤（95）的单个V形槽。该V形槽的曲率半径基本上小于第一基板的曲率半径，使得第二基板（91）的平坦耦合表面短于第一基板（66）的平坦耦合表面。将第一和第二基板放置在一起，使得第二基板中的光纤耦合到第一基板中的光纤。通过相对于第一基板纵向移动（142）第二基板，可以获得连续可变的延迟。连续可变延迟线可以与单独的离散可变延迟线组合以产生更长的连续可变延迟。连续可变延迟线可以在第一基板（66）中仅形成有一个V形槽（68）。 fjdkfjdkfdjf
主权项	A continuously variable delay line, comprising: a first single mode optical fiber (64) having an evanescent field coupling region; a second single mode optical fiber (95) having an evanescent field coupling region, said coupling region of said first fiber substantially longer than said coupling region of said second fiber; means (66, 91) for mounting said fibers with said coupling regions juxtaposed, said mounting means including means (142) for relatively moving said first fiber and said second fiber, while maintaining juxtaposition of said coupling regions.
申请日期	1982-11-12
专利号	EP0126065A1
专利状态	失效
申请号	EP1983900215
公开（公告）号	EP0126065A1
IPC 分类号	G02B6/00 \| G02B6/28 \| H04B10/02 \| G02B5/172
专利代理人	-
代理机构	RUSHTON, RONALD, ET AL
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/51790
专题	半导体激光器专利数据库
作者单位	THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
推荐引用方式 GB/T 7714	SHAW, HERBERT, JOHN,BOWERS, JOHN, E.,NEWTON, STEVEN, A.. Continuously variable fiber optic delay line. EP0126065A1[P]. 1984-11-28.