Optical: systems and elements – Optical amplifier – Dispersion compensation
Reexamination Certificate
2005-12-15
2009-08-25
Bolda, Eric (Department: 3663)
Optical: systems and elements
Optical amplifier
Dispersion compensation
C385S007000, C385S010000, C385S037000
Reexamination Certificate
active
07580184
ABSTRACT:
A Gires-Tournois etalon (GTE) (10) comprising an optical fiber (12) in which a primary chirped fiber Bragg grating (FBG) (16) is provided, an RF signal generator (20), a piezoelectric transducer (22), and a glass horn (24), for coupling an acoustic wave (26) into the fiber (12). The acoustic wave (26) causes a periodic compression within the fiber (12), which induces a low frequency periodic refractive index modulation within the grating section (14) of the fiber (12). This causes two side frequency components to be generated for each high-frequency component of the FBG (16). Two secondary grating are thus excited, having the same spectral bandwidth as the FBG (16), but a lower reflectivity and different central wavelengths. The free spectral range of the GTE (10) can be adjusted by varying the frequency of the acoustic wave (26). The reflectivity of the excited secondary gratings can be adjusted by adjusting the amplitude of the acoustic wave (26).
REFERENCES:
patent: 6181840 (2001-01-01), Huang et al.
patent: 6317539 (2001-11-01), Loh et al.
patent: 6381069 (2002-04-01), Riant et al.
patent: 6510256 (2003-01-01), Asseh et al.
patent: 6822747 (2004-11-01), Li et al.
patent: 2001/0021294 (2001-09-01), Cai et al.
patent: 2002/0094165 (2002-07-01), Rothenberg
patent: 2002/0176659 (2002-11-01), Lei et al.
patent: 2002/0191879 (2002-12-01), Liu et al.
patent: 2003/0021526 (2003-01-01), Bouevitch
patent: 2003/0210864 (2003-11-01), Sugden et al.
patent: 2004/0037505 (2004-02-01), Morin
patent: 2004/0101239 (2004-05-01), Parker
patent: 2006/0182392 (2006-08-01), Larochelle et al.
patent: 0924546 (1999-06-01), None
patent: WO-00/50944 (2000-08-01), None
patent: WO-03/058312 (2003-07-01), None
Shu et al., “Tunable dispersion compensator based on novel distributed Gires-Tournois etalons”, Optical Fiber Communications Conference, vol. 2, pp. 513-514, Mar. 23-28, 2003.
Chen et al., “Analysis of the Chirped Super Moire Gratings Based on Acousto-optical Superlattices,” International Journal of Infrared and Millimeter Waves, Springer, Dordrecht, NL, 21(6):939-944, Jun. 2000.
Chen et al., “Superchirped Moire Grating Based on an Acousto-optic Superlattice with a Chirped Fiber Gragg Grating,” Optical Letters, Optical Society of America, 24(22):1558-1560, Nov. 15, 1999.
Huang et al., “Reflectivity-Tunable Fiber Bragg Grating Reflectors,” IEEE Photonics Technology Letters, IEEE Service Center, Piscataway, NJ, USA, 12(2):176-178, Feb. 2000.
Lai et al., “Optically Tunable Fiber Grating Transmission Filters,” Optics Letters, Optical Society of America, 28(24):2446-2448, Dec. 15, 2003.
Liu et al., “Acoustic-induced Switching of the Reflection Wavelength in a Fiber Bragg Grating,” Optics Letters, Optical Society of America, 25(18):1319-1321, Sep. 15, 2000.
Liu et al., “Acousto-optic Superlattice Modulator Using a Fiber Gragg Grating,” Optics Letters, Optical Society of America, 22(19):1515-1517, Oct. 1, 1997.
Liu et al., “Improved Efficiency Narrow-Band Acoustooptic Tunable Reflector Using Fibre Bragg Grating,” Bragg Gratings, Photosensitivity, and Poling in Lass Fibers and Waveguides: Applications and Fundamentals, Techinical Digest, pp. 338-341, 1997.
Liu et al., “Switchable Narrow Bandwidth Comb Filter Based on an Acoustooptic Superlattice Modulator in Sinc-sampled Fiber Gratings,” Technical Digets of the Converence on Laser and Electrooptics 1999, Baltimore, MD, USA, pp. 77-78, May 23, 1999.
Liu et al., “100% Efficient Narrow-Band Acoustooptic Tunable Reflector Using Fiber Bragg Grating,” Journal of Lightwave Technlogy, IEEE Service Center, New York, NY, USA, 16(11):2006-2009, Nov. 1998.
Shu et al., “Design and Realization of Dispersion Slope Compensators Using Distributed Gires-Tournois Etalons,” IEEE Photonics Tech Lett., 16(4):1092-1094, Apr. 2004.
Shu et al., “Tailored Gires—Tournois Etalons as Tunable Dispersion Slope Compensators,” Optics Letters, Optical Society of America, 29(9):1013-1015, May 1, 2004.
International Search Report for PCT Application No. PCT/GB2005/004838 filed Dec. 15, 2005.
United Kingdom Search Report for United Kingdom Application Serial No. GB0500137.5 filed Jan. 15, 2005.
Bennion Ian
Shu Xuewen
Sugden Catherine Anne
Aston University
Bolda Eric
Darby & Darby P.C.
Turner Patrick R.
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