Article comprising a temperature compensated optical fiber refra

Details Article comprising a temperature compensated optical fiber refra Article comprising a temperature compensated optical fiber refra

1996-09-09

1997-12-02

Ullah, Akm E.

Optical waveguides

With optical coupler

Input/output coupler

G02B 634

Patent

active

056945035

ABSTRACT:
Conventional optical gratings are relatively temperature sensitive. This sensitivity is generally undesirable but can be reduced or eliminated by attaching the grating to a support member having a negative coefficient of thermal expansion. Exemplarily the member comprises Zr-tungstate and/or Hf-tungstate. The thermal expansion can be tailored by admixture of positive expansion coefficient material (e.g., Al.sub.2 O.sub.3, SiO.sub.2) to the negative expansion coefficient material (e.g., ZrW.sub.2 O.sub.8), or by a variety of other techniques.

REFERENCES:
patent: 3971645 (1976-07-01), Bachmann
patent: 5042898 (1991-08-01), Morey et al.
patent: 5146083 (1992-09-01), Zuckerwar et al.
patent: 5196694 (1993-03-01), Berthold et al.
patent: 5200610 (1993-04-01), Zuckerwar et al.
patent: 5223715 (1993-06-01), Taylor
patent: 5258614 (1993-11-01), Kidwell et al.
patent: 5422873 (1995-06-01), Kewitsch et al.
patent: 5514360 (1996-05-01), Sleight et al.
patent: 5600070 (1997-02-01), Wlodarczyk
"Passive Temperature-Compensating Package for Optical Fiber Gratings", by G. W. Yoffe et al., Applied Optics, vol. 34(30), Oct. 20, 1995, pp. 6859-6861.
"Negative Thermal Expansion from 0.3 to 1050 Kelvin in ZrW.sub.2 O.sub.8 ", by T. A. Mary et al., Science, vol. 272, Apr. 5, 1996, pp. 90-92.
"Condensed Phase Relations in the Systems ZrO.sub.2 -WO.sub.2 -WO.sub.3 and HfO.sub.2 -WO.sub.2 -WO.sub.3 ", by L. L. Y. Chang et al., Journal of The American Ceramic Society, vol. 50, No. 4, Apr. 1967, pp. 211-215.
Summary of papers to be given at ECOC '96, Sep. 15-19, 1996, Oslo, Norway, paper Mo B.3.5. (To the best of applicants' knowledge, this summary became available during the week of Jul. 29, 1996-Aug. 2, 1996.).

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