Optical: systems and elements – Light interference – Electrically or mechanically variable
Reexamination Certificate
2005-02-22
2005-02-22
Boutsikaris, Leo (Department: 2872)
Optical: systems and elements
Light interference
Electrically or mechanically variable
C359S577000, C359S260000, C356S454000
Reexamination Certificate
active
06859321
ABSTRACT:
A photonic bandgap device includes a first mirror region including alternating layers of different materials. A second mirror region includes alternating layers of different materials. An air gap cavity region is positioned between the first mirror region and second region. The air gap cavity changes its thickness when a voltage is applied so that the device is tuned to a particular resonant wavelength.
REFERENCES:
patent: 4825262 (1989-04-01), Mallinson
patent: 4859060 (1989-08-01), Katagiri et al.
patent: 20020031155 (2002-03-01), Tayebati et al.
patent: 20040136076 (2004-07-01), Tayebati
A.T.T.D. Tran et al., “Surface micromachined Fabry-Perot tunable filter”, IEEE Photonics Technology Letters, 8(3), pp. 393395(1996).*
H.Hillmer et al., “Ultra-wide continuosly tunable 1.55 micron vertical air-cavity filters and VCSEL's based on micromachined electrostatic actuation”, Proc. of IEEE vol. 4646, Photonics West, San Jose, Jan. 2002.*
“Surface Micromachined Fabry-Perot Tunable Filter,” Tran et al.IEEE Photonics Technology Letters. Mar. 1996. vol. 8, No. 3.
“Dynamics of gain in vertical cavity lasers and amplifiers at 1.53 um using Femtosecond photoexcitation,” Bouche et al.Applied Physics Letters. Nov. 1998. vol. 73, No. 9.
“Low Threshold, Room Temperature Pulsed Operation of 1.5 um Vertical-Cavity Surface-Emitting Lasers with an Optimized Multi-Quantum Well Active Layer,” Umoi et al.IEEE Photonics Technology Letters. Mar. 1994. No. 3.
“Tunable Multichannel Optical Filter based on Silicon Photonic Band Materials Actuation,” Yi et al.Applied Physics Letters. Nov. 2002. vol. 81, No. 22.
“Low Voltage Tunable One Dimensional Photonic Crystal with Large Air Defects,” Yi et al.Mat. Res. Soc. Symp. Proc. 2002. vol. 722.
“Potential for Micromachined Actuation of ultra-wide continuously tunable optoelectronic devices,” Hillmer et al.Applied Physics B: Lasers and Optics. Aug. 2002. vol. 75.
“Ultra-wide continuously tunable 1.55um vertical air-cavity filters and VCSEL's based on micromachined electrostatic actuation,” Hillmer et al.Proceedings of SPIEvol. #4646, Photonics West, San Jose, Jan. 19-25, 2002.
“Design and Analysis of Micromechanical Tunable Interferometers for WDM Free-Space Optical Interconnection,” Toshiyoshi et al.Journal of Lightwave Technology. Jan. 1999. vol. 17, No. 1.
Kimerling Lionel C.
Wada Kazumi
Yi Yasha
Gautier & Connors LLP
Massachusetts Institute of Technology
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