Tunable optical filter

Details Tunable optical filter Tunable optical filter

2006-05-09

2006-05-09

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

With optical coupler

Particular coupling function

C385S014000, C385S039000, C333S219100

Reexamination Certificate

active

07043115

ABSTRACT:
A tunable filter having a resonator with a resonant frequency dependent upon a variable gap is provided. The variable gap may be controllably altered by use of an actuator. The resonator is a high Q resonator that may be formed by a ring resonator, microsphere, microdisc, or other high Q optical structures. Actuation is preferably achieved through an electrostatic actuator that moves a dielectric plate relative to the resonator in response to measured values of gap and temperature.

REFERENCES:
patent: 4452533 (1984-06-01), Miles et al.
patent: 4686407 (1987-08-01), Ceperley
patent: 4758087 (1988-07-01), Hicks, Jr.
patent: 4955028 (1990-09-01), Alferness et al.
patent: 5097476 (1992-03-01), Thiessen
patent: 5182779 (1993-01-01), D'Agostino et al.
patent: 5187546 (1993-02-01), Johnston
patent: 5319435 (1994-06-01), Melle et al.
patent: 5331658 (1994-07-01), Shieh et al.
patent: 5361313 (1994-11-01), O'Keefe
patent: 5400140 (1995-03-01), Johnston
patent: 5493113 (1996-02-01), Dunphy et al.
patent: 5509022 (1996-04-01), Lowery et al.
patent: 5513913 (1996-05-01), Ball et al.
patent: 5534992 (1996-07-01), Takeshima et al.
patent: 5564832 (1996-10-01), Ball et al.
patent: 5594543 (1997-01-01), de Groot et al.
patent: 5637865 (1997-06-01), Bullat et al.
patent: 5642375 (1997-06-01), King et al.
patent: 5663792 (1997-09-01), Killpatrick et al.
patent: 5808743 (1998-09-01), Stephens et al.
patent: 5822355 (1998-10-01), Ahn et al.
patent: 5825799 (1998-10-01), Ho et al.
patent: 5974060 (1999-10-01), Byren et al.
patent: 6034770 (2000-03-01), Kim et al.
patent: 6323746 (2001-11-01), Prager et al.
patent: 6342825 (2002-01-01), Hershtig
patent: 6362708 (2002-03-01), Woods
patent: 6600394 (2003-07-01), Wang et al.
patent: 6473218 (2004-06-01), Maleki et al.
patent: 2001/0012149 (2001-08-01), Lin et al.
patent: 2002/0044734 (2002-04-01), Tapalian et al.
patent: 2002/0154860 (2002-10-01), Fernald et al.
patent: 0 348 039 (1989-12-01), None
patent: 0 571 107 (1993-11-01), None
patent: 07063855 (1995-03-01), None
patent: WO 95/13638 (1995-05-01), None
Heimala, et al., “Thermally Tunable Integrated Optical Ring Resonator with Poly-Si Thermistor,”Journal of Lightwave Technology14(10):2260-2267 (1996).
Shen et al., “Tunable Dielectric Resonators with Dielectric Tuning Disks in Cylindrical Enclosures,”Microwave Symposium Digest, pp. 1441-1444 (2000).
Partial International Search Report from PCT/US03/38626 dated Jun. 7, 2004.
Arentoft, et al. Picco, D1:Report, pp. 1-26.
Berkoff, et al. “Experimental Demonstration of a Fiber Bragg Grating Accelerometer,”Photonics Tech. Letters8(12):1677-1679 (1996).
Big Payoffs in a Flash,Scientific AmericanSep. 2000 pp. 73-79.
Cai, et al. “Fiber-Optic Add-Drop Device Based on a Silica Microsphere-Whispering Gallery Mode System,”Photonics Technology Letters11(6):686-687 (1999).
Cai, et al. “Highly efficient optical power transfer to whispering-gallery modes by use of a symmetrical dual-coupling configuration,”Optics Letters25(4):260-262 (2000).
Dandliker, et al. “Electronically scanned white-light interferometry: a novel noise-resistant signal processing,”Optics Letters17(9):679-681 (1992).
De Brabander, et al. “Integrated Optical Ring Resonator With Micromechanical Diaphragm for Pressure Sensing,”Photonics Technology Letters6(5):671-673 (1994).
“Fiber Optic Sensors by Blue Road Research,”MEMS—Micromachines in Silicon—MEMS and MST from Standard MEMS.
Fuhr, “Measuring with Light; Part 1”Sensors(2000).
Fuhr, “Measuring with Light; Part 2”Sensors(2000).
Fuhr, “Measuring with Light; Part 3”Sensors(2000).
“High-quality ring resonators,” Zurich Research Laboratory.
International Search Report from PCT/US01/44399.
Jones, et al. “Near-diffraction-limited high power (˜1W) single longitudinal mode CW diode laser tunable from 960 to 980nm,”Electronics Letters31(19):1668-1669 (1995).
Jones, et al. “Stabilization of the frequency, phase, and repetition rate of an ultra-short pulse train to a Fabry-Perot reference cavity,”Optics Communications175:409-418 (2000).
Katagiri, et al. “Dynamic microforce measurement by distortion detection with a coupled-cavity laser displacement sensor stabilized in a mechanical negative-feedback loop,”Applied Optics37(31):7193-7199 (1998).
Katagiri, et al. “Passively Mode-Locked Micromechanically-Tunable Semiconductor Lasers,”IEICE Trans. Electron.E81(2):151-159 (1998).
Katagiri, “Small Displacement Sensor Measures Tiny Forces,”Sensor Technology16(6):7.
Kersey, et al. “Fiber Grating Sensors,”Journal of Lightwave Technology15(8):1442-1463 (1997).
Koo, et al. “Bragg Grating-Based Laser Sensors Systems with Interferometric Interrogation and Wavelength Division Multiplexing,”Journal of Lightwave Technology13(7):1243-1249 (1995).
Kurita, et al. “Ultrafast All-Optical Signal Processing with Mode-Locked Semiconductor Lasers,”IEICE Trans ElectronE81-C(2):129-139 (1998).
“Light-sensing technologies hurdle barriers,”NASA Newsp. 28 (1997).
Meggitt, et al. “An all fibre white light interferometric strain measurement system,”Sensors and Actuators79:1-7 (2000).
Meggitt, et al. “Fiber optic white-light interferometric sensors,”Optical Fiber Sensor Tech.pp. 269-312 (1995).
Notcutt, et al. “Allan Deviation Measurements of a Cryogenic All-Sapphire Fabry-Perot Reference Cavity,”1996 Conference on Precision Electromagnetic Measurements Digest, pp. 193-194 (1996).
Rao, et al. “Recent progress in fibre optic low-coherence interferometry,”Meas. Sci. Technol.7:981-999 (1996).
“Resonant Structures and Devices Research,” MIT Microphotonics Center.
Rogister, et al. “Experimental demonstration of suppression of low-frequency fluctuations and stabilization of an external-cavity laser diode,”Optics Letters25(11):808-810 (2000).
Schulz, et al. “Advanced fiber grating strain sensor systems for bridges, structures, and highways,”.
Schulz, et al. “Health monitoring of an adhesive joint using a multi-axis fiber grating strain sensor system”.
Sutter, et al. The Shortest KLM Ti:Sapphire Laser Pulse Started by a Semiconductor Saturable Absorber Mirror (SESAM),IEICE Trans. Electron.E81-C(2):123-124 (1998).
“Surface Gratings for Optical Coupling with Microspheres” NASA's Jet Propulsion Laboratory.
“Systems & Sensors,” Bell College of Technology.
Tabib-Azar, et al. “Fiber-optics MEMS pressure sensors based on evanescent field interaction,”SPIE3276:135-146.
Tabib-Azar, et al. “MOEM Pressure and Other Physical Sensors Using Photon Tunneling and Optical Evanescent Fields with Exponential Sensitivities and Excellent Stabilities,”Conf. on Microelectronic Structures and MEMS for Optical Processing3513:210-222 (1998).
Talvitie, et al. “Improved frequency stability of an external cavity diode laser by eliminating temperature and pressure effects,”Applied Optics35(21):4166-4168 (1996).
Technology Transfer, OPLL sensor eases strain monitoring, NASA news, Jul. 2000, p. 30.
Udem, et al. “Accurate measurement of large optical frequency differences with a mode-locked laser,”Optics Letters24(13):881-883 (1999).
U.S. patent application Publication—US 2002/0154860; Published: Oct. 24, 2002.
Vasil'ev, et al. “A Diode Laser with and External High-Q Microcavity” LEOS Summer Topical Meeting, pp. 31-32 (1997).
Vassilovski, et al. “Carrier Transport Effects in Active and Passive Modelocking of Monolithic Quantum-Well Lasers at Millimeter-Wave Frequencies,”Photonics Tech. Letters8(12):1603-1605 (1996).
Weisbuch, et al., “Advances in Photonic Crystals,”Phys. Stat. Sol.221:93-99 (2000).
Weiss, “Spectrum deftly takes visible light's pulse,”Science Ne

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