Adjustable athermal package for optical fiber devices

Details Adjustable athermal package for optical fiber devices Adjustable athermal package for optical fiber devices

2005-06-14

2005-06-14

Assaf, Fayez G. (Department: 2872)

Optical waveguides

With optical coupler

Input/output coupler

C385S031000, C385S015000, C385S137000

Reexamination Certificate

active

06907164

ABSTRACT:
An athermally packaged optical fiber device, such as a Bragg grating, is provided. The device includes a hollow structure, and a free and a threaded member projecting in the hollow structure from both ends. The optical fiber is mounted in tension inside the hollow structure through longitudinal fiber-receiving bores in both members, and has an anchor point affixed to each member with the grating therebetween. The anchor point of the threaded member is provided outside of the hollow structure, making the device more compact. The free and threaded members are rotatable together to adjust the resonant wavelength of the grating, and a nut may be provided to allow a fine-tuning. The hollow structure, free member and threaded member have a coefficient of thermal expansion selected so that they together compensate for the temperature dependency of the Bragg wavelength.

REFERENCES:
patent: 4936646 (1990-06-01), Enochs et al.
patent: 5042898 (1991-08-01), Morey et al.
patent: 5694503 (1997-12-01), Fleming et al.
patent: 5914972 (1999-06-01), Siala et al.
patent: 5991483 (1999-11-01), Engelberth
patent: 6044189 (2000-03-01), Miller
patent: 6087280 (2000-07-01), Beall et al.
patent: 6101301 (2000-08-01), Engelberth et al.
patent: 6374015 (2002-04-01), Lin
patent: 6449402 (2002-09-01), Bettman et al.
patent: WO9859267 (1998-12-01), None
G.W.Yoffe, P.A. Krug, F. Ouellette, and D. Thorncraft, “Temperature-compensated optical-fiber Bragg gratings”, OFC, vol. 8, 1995 OSA Technical Digest Series, Paper W14, p. 134.
G.W.Yoffe, P.A. Krug, F. Ouellette and D.A. Thorncraft, “Passive temperature-compensating package for optical fiber gratings”, Appl. Optics, vol. 34, No. 30, Oct. 1995, pp. 6859-6861.
T.E. Hammon, J. Bulman, F. Ouellette & S.B.Poole, “A temperature compensated optical fiber Bragg grating band rejection filter and wavelength reference”, OECC'98 Technical Digest, pp. 350-351, 1996.
D.L. Weidman, G.H. Beall, K.C. Chyung, G.L. FranciS, R.A. Modavis, and R.M. Morena, “A novel negative expansion substrate material for athermalizing fiber Bragg gratings”, 22ndEuropean Conference on Optical Communication—ECOC'96, Oslo, Paper MoB 3.5 pp. 1-61. . . 63.
A.Inoue, T. Iwashima, T. Enomoto, S. Ishikawa and H. Kanamori, “Optimization of fiber Bragg grating for dense WDM transmission system”, IEICE Trans. Electron. vol. E81-C, No. 8, pp 1209-1218, Aug. 1998.
D. Weidman, “Fiber Bragg gratings enhance real-world applications”, Laser Focus World, pp. 99-103; Mar. 1999.
T. Iwashima, A. inoue, M. Shigematsu, M. Nishimura, Y. Hattori, “Temperature compensation technique for fiber Bragg gratings using liquids crystalline polymer tubes”, Electronics Letters, vol. 33, No. 5, pp. 417-419, Feb. 27, 1997.
S. Magne, S. Rougeault, M. Vilela, and P. Ferdinand, “State-of-strain evaluation with fiber Bragg grating rosettes:application to discrimination between strain and temperature effects in fiber sensors”, App . . . Optics, Dec. 1997, vol. 36, No. 36, pp. 9437-9447.
V. Arya, D.W. Sherrer, A. Wang, R.O. Claus, and Mark Jones, “Application of Thin-Film Optical Filters to the Temperature Compensation of Optical Fiber Grating-Based Devices” IEEE Trans on Instrum. and Meas. vol. 46, No. 5, Oct. 1997, pp. 1173-1177.

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