Title:
LIGHT SWITCH AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JPH04163514
Kind Code:
A
Abstract:
PURPOSE:To ease the degree of dimensional accuracy as well as to enable it to perform the promotion of high yielding mass production for a high- performance light switch by constituting a movable fiber and a stationary fiber with a GI type multimodal optical fiber of specified length, having a larger core diameter than that of the single mode optical fiber concerned. CONSTITUTION:Each of GI type multimodal optical fibers 32, 92a, 92b as each spot size expanded area is connected to each tip of a single mode optical fiber 31 of a movable fiber 30 and single model optical fibers 91a, 91b of stationary fibers 901, 90b, respectively. For this reason, the optical axial slippage dependency on a connection loss among these opposing fibers 30, 901, 90b can be eased. With this constitution, constituent members of a single mode optical fiber movable type light switch and dimensional accuracy at time of assembly operation are sharply eased, thus the promotion of highly yielding mass production for the high-performance light switch is made achievable.
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Inventors:
NAGAOKA SHINJI
Application Number:
JP28842790A
Publication Date:
June 09, 1992
Filing Date:
October 29, 1990
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
G02B26/08; (IPC1-7): G02B26/08
Attorney, Agent or Firm:
Yoshitaka Yoshitaka