Variable optical fiber grating and dispersion compensator

Details Variable optical fiber grating and dispersion compensator Variable optical fiber grating and dispersion compensator

2005-08-09

2005-08-09

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

Optical waveguide sensor

Including physical deformation or movement of waveguide

C385S037000, C359S337500

Reexamination Certificate

active

06928203

ABSTRACT:
A variable optical fiber grating is provided which is compact, and in which an amount of chromatic dispersion can be effectively varied without changing an operating center wavelength. Also provided is a dispersion compensator, which uses this variable optical fiber grating. The fixing member is formed by providing an outer cylinder2comprising a material with a lower coefficient of linear expansion around an inner cylinder1comprising a material with a higher coefficient of linear expansion, and an optical fiber grating is fixed in a groove3formed on the inner cylinder1. By adjusting the fixing position of the optical fiber grating, an expansion coefficient and contraction coefficient of the optical fiber grating which follows the expansion and contraction of the material with the higher coefficient of linear expansion, differ along the longitudinal direction of the optical fiber grating, so that an amount of chromatic dispersion is controlled.

REFERENCES:
patent: 5256237 (1993-10-01), Maas et al.
patent: 6147341 (2000-11-01), Lemaire et al.
patent: 6584248 (2003-06-01), Franzen et al.
patent: 2002/0154862 (2002-10-01), Guerin et al.
patent: 2003/0026534 (2003-02-01), Skull et al.
patent: 1388392 (2003-01-01), None
A. Tanaka, et al., “Tunable Dispersion Compensation Fiber Grating based on Double Ring Structure”, Technical Report of Institute of Electronics Information and Communication Engineers, OCS2002-97, OPE2002-103, LQE2002-153 (Nov. 2002), entitled, abstract.
A. Sakamoto et al., Preprint of 2002 Electronic Information Communication Society, Electronics Society Meeting, C-3-38, abstract.
K. Takahashi et al., Preprint of 2002 Electronics Information Communication Integrated meeting, C-3-140, abstract.
A. Sakamoto et al, Preprint of 2003 Electronic Information Communication Integrated Meeting C-13-115, abstact.
A. Sakamoto et al., “Tunable Second Order Dispersion Compensator using Fiber Grating with Double Ring Structure”, OFC 2003/ vol. 1/37, No. MF33.
B.J. Eggleton et al., “Electrically tunable power efficient dispersion compensation fiber Bragg gratings for dynamic operation in nonlinear light wave systems”, OFC 1999, PD27, 1999.
M. M. Ohn et al., “Dispersion variable fiber Bragg grating using a piezoelectric stack”, Electronics letters Oct. 10, 1996, vol. 32, No. 21, pp. 2000-2001.
S. Matsumoto et al., “tunable dispersion equalizer with a divided thin film heater”, OFC 2001 TuS4-1.
A.H. Gnauk et al. “16×20-Gb/s, 400-km WDM Transmission Over NZDSF Using a Slope-Compensating Fiber-Grating Module”, IEEE Photonics Technology Letters vol. 12, No. 4, Apr. 2000.
C. K. Madsen and G Lenz, “A Multi-channel Dispersion Slope compensating Optical All pass Filter” OFC 2000 WF5-1, pp94-96.
M. Yablonski et al., “Layered optical thin film allpass dispersion equalizer for compensation of dispersion slope of optical fibers” Electronics Letters Jun. 22, 2000, vol. 36, No. 3, pp 1139-1141.
Chee S. Goh et al., “Non-linearly Strain Chirped Fiber Bragg Grating with an Adjusting Dispersion Slope” IEEE Photonics Technology Letters, vol. 14, No. 5, pp-663-665 (2002).
A. Sakamoto et al., “Tunable FBG Dispersion Compensator with Double Ring Structure” ECOC2002, TDC/DCF Modules Oct. 3, 2002.
B.J. Eggleton et al., “Integrated Tunable Fiber Gratings for Dispersion Management in High-Bit Rate Systems” Journal Tunable Lightwave Technology, Col. 18, No. 10, pp. 1418-1432.
S. Matsumoto et al., “Tunable Dispersion Equalizer with a Divided Thin-Film Heater for 40-Gb/s RZ Transmissions” IEEE Photonics Technology Letters vol. 18, No. 8, Aug. 2001.
T. Imai, T. Komukai et al., “Dispersion Tuning of a Linearly Chirped Fiber Bragg Grating Without a Center Wavelength Shift by Applying a Strain Gradient” IEEE Photonics technology Letters, vol. 10 No. 6, Jun. 1998.

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