Patent
1989-05-23
1990-03-27
Sikes, William L.
G02B 636
Patent
active
049115243
ABSTRACT:
.theta.-clamp also serves as a jacket clamp. The clamp comprises a cover mounted on an arm by a hinge and kept closed by a magnet, so that a pusher provided in the cover is urged against a jacketed portion of an optical fiber by a spring. In this state, the fiber is rotated in a .theta. direction by rotating a dial. .theta.-clamp also serves as a jacket clamp. Therefore, 1. The .theta.-clamp can be positioned close to a fiber clamp. For this reason, the optical fiber is not twisted during .theta.-axes alignment, and a follow-up property of rotation of the optical fiber with respect to rotation of the .theta. axis is improved. In addition, the apparatus need not be adjusted so as not to twist the optical fiber. 2. The distance between fiber clamp and .theta.-clamp is shortened. Therefore, when the optical fiber is clamped and moved in the z direction, the jacketed portion is not flexed. For this reason, a follow-up property of movement of the end face of the optical fiber with respect to movement of a table in the z-axis direction is improved.
REFERENCES:
patent: 4603941 (1986-08-01), Fujii et al.
patent: 4725297 (1988-02-01), Grigsby et al.
patent: 4749252 (1988-06-01), Yanagi et al.
patent: 4812010 (1989-03-01), Osaka et al.
Itoh Kenichiroh
Suzuki Naomichi
Taya Hiroyuki
Yamada Takeshi
Yoshi-numa Mikio
Fujikura Ltd.
Sikes William L.
Ullah Akm E.
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