Waveguide-based Bragg gratings with spectral sidelobe...

Details Waveguide-based Bragg gratings with spectral sidelobe... Waveguide-based Bragg gratings with spectral sidelobe...

2006-08-08

2006-08-08

Williams, Joseph (Department: 2879)

Optical waveguides

With optical coupler

Input/output coupler

C385S129000

Reexamination Certificate

active

07088888

ABSTRACT:
A waveguide Bragg grating (WBG) is apodized by varying the duty cycle of selected grating periods while fixing the pitch of the grating periods. In one embodiment, the WBG is implemented in a silicon substrate using polysilicon filled trenches of varying width while keeping the grating periods' pitch constant. The polysilicon trenches are formed so that if the width of one trench is increased compared to an adjacent grating period, the trench width in the other adjacent grating period (if present) is decreased.

REFERENCES:
patent: 4518219 (1985-05-01), Leonberger et al.
patent: 4725110 (1988-02-01), Glenn et al.
patent: 4815084 (1989-03-01), Scifres et al.
patent: 4984894 (1991-01-01), Kondo
patent: 5082342 (1992-01-01), Wight et al.
patent: 5159601 (1992-10-01), Huber
patent: 5195161 (1993-03-01), Adar et al.
patent: 5212745 (1993-05-01), Miller
patent: 5237576 (1993-08-01), DiGiovanni et al.
patent: 5247528 (1993-09-01), Shinozaki et al.
patent: 5285274 (1994-02-01), Tanno et al.
patent: 5315437 (1994-05-01), Alfano et al.
patent: 5379318 (1995-01-01), Weber
patent: 5418802 (1995-05-01), Chwalck
patent: 5446809 (1995-08-01), Fritz et al.
patent: 5448404 (1995-09-01), Schrenk et al.
patent: 5467732 (1995-11-01), Donnelly, Jr. et al.
patent: 5493113 (1996-02-01), Dunphy et al.
patent: 5511083 (1996-04-01), D'Amato et al.
patent: 5511142 (1996-04-01), Horie et al.
patent: RE35516 (1997-05-01), Henry et al.
patent: 5627927 (1997-05-01), Udd
patent: 5636309 (1997-06-01), Henry et al.
patent: 5668900 (1997-09-01), Little et al.
patent: 5689358 (1997-11-01), Nakao et al.
patent: 5751466 (1998-05-01), Dowling et al.
patent: 5764829 (1998-06-01), Judkins et al.
patent: 5781268 (1998-07-01), Liu et al.
patent: 5796902 (1998-08-01), Bhat et al.
patent: 5801378 (1998-09-01), Hane et al.
patent: 5907427 (1999-05-01), Scalora et al.
patent: 5915051 (1999-06-01), Damask et al.
patent: 6011881 (2000-01-01), Moslehi et al.
patent: 6014480 (2000-01-01), Baney
patent: 6061481 (2000-05-01), Heidrich et al.
patent: 6075908 (2000-06-01), Paniccia et al.
patent: 6141469 (2000-10-01), Kashyap
patent: 6172791 (2001-01-01), Gill et al.
patent: 6221565 (2001-04-01), Jain et al.
patent: 6233381 (2001-05-01), Borrelli et al.
patent: 6259529 (2001-07-01), Sorin et al.
patent: 6266464 (2001-07-01), Day et al.
patent: 6268953 (2001-07-01), Maloney
patent: 6327036 (2001-12-01), Bao et al.
patent: 6330255 (2001-12-01), Hung
patent: 6330383 (2001-12-01), Cai et al.
patent: 6337737 (2002-01-01), Chang et al.
patent: 6343167 (2002-01-01), Scalora et al.
patent: 6363202 (2002-03-01), Goodfellow
patent: 6373872 (2002-04-01), Deacon
patent: 6374013 (2002-04-01), Whiteaway et al.
patent: 6411756 (2002-06-01), Sadot et al.
patent: 6438277 (2002-08-01), Eggleton et al.
patent: 6459533 (2002-10-01), Clapp et al.
patent: 6480513 (2002-11-01), Kapany et al.
patent: 6529649 (2003-03-01), Soole
patent: 6538783 (2003-03-01), Stephens
patent: 6546160 (2003-04-01), Schunk
patent: 6600864 (2003-07-01), Samara-Rubio et al.
patent: 6628450 (2003-09-01), Samara-Rubio
patent: 6661937 (2003-12-01), Sobiski et al.
patent: 6674928 (2004-01-01), Johnson et al.
patent: 6748138 (2004-06-01), Wang et al.
patent: 6775427 (2004-08-01), Evans
patent: 2002/0025097 (2002-02-01), Cooper et al.
patent: 2002/0085810 (2002-07-01), Lee at al.
patent: 2002/0113966 (2002-08-01), Shchegrov et al.
patent: 2002/0197011 (2002-12-01), Liu et al.
patent: 2003/0013438 (2003-01-01), Darby
patent: 2003/0020865 (2003-01-01), Hoke
patent: 2003/0021305 (2003-01-01), Lundqvist
patent: 2003/0025976 (2003-02-01), Wipiejewski
patent: 2003/0086155 (2003-05-01), Ovadia et al.
patent: 2003/0086655 (2003-05-01), Deacon
patent: 2003/0091086 (2003-05-01), Sahara et al.
patent: 2003/0091287 (2003-05-01), Lam et al.
patent: 2003/0099018 (2003-05-01), Singh et al.
patent: 2004/0033020 (2004-02-01), LoCascio et al.
patent: 2004/0052522 (2004-03-01), Fishteyn et al.
patent: 1094574 (2001-04-01), None
Erdogan, Turan, “Fiber Grating Spectra,”Journal of Lightwave Technology, vol. 15, No. 8, pp. 1277-1294, Aug. 1997.
Hill, Kenneth O. et al., “Fiber Bragg Grating Technology Fundamentals and Overview,”Journal of Lightwave Technology, vol. 15, No. 8, pp. 1263-1276, Aug. 1997.
Studenkov, P.V. et al., “Asymmetric Twin-Waveguide 1.55-μm Wavelength Laser with a Distributed Bragg Reflector,”IEEE Photonics Technology Letters, vol. 12, No. 5, pp. 468-470, May 2000.
Willner, A.E. et al., “Tunable Compensation of Channel Degrading Effects Using Nonlinearly Chirped Passive Fiber Bragg Gratings,”IEEE Journal of Selected Topics in Quantum Electronics, vol. 5, No. 5, pp. 1298-1311, Sep./Oct. 1999.
Giles, C.R., “Lightwave Applications of Fiber Bragg Gratings,”Journal of Lightwave Technology, vol. 15, No. 8, pp. 1391-1404, Aug. 1997.
Sugden, K. et al., “Fabrication and Characterization of Bandpass Filters Based on Concatenated Chirped Fiber Gratings,”Journal of Lightwave Technology, vol. 15, No. 8, pp. 1424-1432, Aug. 1997.
Wiesmann, D. et al., “Apodized Surface-Corrugated Gratings with Varying Duty Cycles”,IEEE Photonics Technology Letters, vol. 12, No. 6, pp. 639-641, Jun. 2000.
Shibata, Y. et al., “Coupling Coefficient Modulation of Waveguide Grating Using Sampled Grating”,IEEE Photonics Technology Letters, vol. 6, No. 10, pp. 1222-1224, Oct. 1994.
“Encyclopedia.com-Results for laser,”The Columbia Electronic Encyclopedia, Sixth Edition. Retrieved Aug. 15, 2001 from http://www.encyclopedia.com/articles/07237.html.
“Encyclopedia.com-Results for laser: Coherent Light and Its Emission in Lasers,”The Columbia Electronic Encyclopedia, Sixth Edition. Retrieved Aug. 15, 2001 from http://www.encyclopedia.com/articles/07237CoherentLightandItsEmissioninLasers.html.
“Encyclopedia.com-Results for laser: Characteristics of Lasers,”The Columbia Electronic Encyclopedia, Sixth Edition. Retrieved Aug. 15, 2001 from http://www.encyclopedia.com/articles/07237CharacteristicsofLasers.html.
“Encyclopedia.com-Results for laser: Applications of Lasers,”The Columbia Electronic Encyclopedia, Sixth Edition. Retrieved Aug. 15, 2001 from http://www.encyclopedia.com/articles/07237ApplicationsofLasers.html.
“Laser,” Microsoft® Encarta® Online Encyclopedia 2001. Retrieved Aug. 15, 2001 from http://encarta.msn.com/find/Concise.asp?z=1&pg=2&ti=761578658.
Weschler, Mattew, “How Lasers Work,”Howstuffworks. Retrieved Aug. 15, 2001 from http://www.howstuffworks.com/laser.htm.
Weschler, Mattew, “How Lasers Work: The Basics of an Atom,”Howstuffworks. Retrieved Aug. 15, 2001 from http://www.howstuffworks.com/laserl.htm.
Weschler, Mattew, “How Lasers Work: The Laser/Atom Connection,”Howstuffworks. Retrieved Aug. 15, 2001 from http://www.howstuffworks.com/laser2.htm.
Weschler, Mattew, “How Lasers Work: Three-Level Laser,”Howstuffworks. Retrieved Aug. 15, 2001 from http://www.howstuffworks.com/laser3.htm.
Weschler, Mattew, “How Lasers Work: Types of Lasers,”Howstuffworks. Retrieved Aug. 15, 2001 from http://www.howstuffworks.com/laser4.htm.
Weschler, Mattew, “How Lasers Work: Laser Classifications,”Howstuffworks. Retrieved Aug. 15, 2001 from http://www.howstuffworks.com/laser5.htm.
Weschler, Mattew, “How Lasers Work: Links,”Howstuffworks. Retrieved Aug. 15, 2001 from http://www.howstuffworks.com/laser6.htm.
Maluf, Nadim, “Lasers: A Tutorial,” New Focus® , Opticon 2001, San Jose, CA, pp. 1-48.
Bilodeau, F. et al., “High-Return-Loss Narrowband All-Fiber Bandpass Bragg Transmission Filter”, IEEE Photonic Technology Letters, vol. 6, No. 1, Jan. 1994, pp. 80-82.

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