Optical waveguides – Planar optical waveguide
Reexamination Certificate
2008-03-25
2008-03-25
Pak, Sung (Department: 2874)
Optical waveguides
Planar optical waveguide
Reexamination Certificate
active
07349613
ABSTRACT:
A device includes a photonic crystal having a plurality of voids disposed in a periodic lattice throughout a dielectric material. Each void is at least partially defined by a surface of the dielectric material. The photonic crystal also includes a waveguide. Gain material is disposed within at least one void located proximate the waveguide. The gain material may emit radiation having a wavelength within a photonic bandgap of the photonic crystal and corresponding to an allowable mode of the waveguide. A method for coupling radiation to a waveguide includes providing a photonic crystal having a plurality of voids disposed in a periodic lattice throughout a dielectric material and a waveguide. Each void is at least partially defined by at least one surface of the dielectric material. Gain material is provided within at least one void located proximate the waveguide and stimulated to emit electromagnetic radiation.
REFERENCES:
patent: 6826223 (2004-11-01), Meyer et al.
patent: 6878969 (2005-04-01), Tanaka et al.
patent: 6917055 (2005-07-01), Stegmuller
patent: 6943377 (2005-09-01), Gaska et al.
patent: 6958494 (2005-10-01), Lin et al.
patent: 2002/0172820 (2002-11-01), Majumdar et al.
patent: 2004/0056243 (2004-03-01), Atanackovic et al.
patent: 2004/0091224 (2004-05-01), Baumberg et al.
patent: 2004/0247009 (2004-12-01), Noda et al.
patent: 2005/0018734 (2005-01-01), Sugitatsu et al.
patent: 2005/0029536 (2005-02-01), Sugitatsu et al.
patent: 2005/0063438 (2005-03-01), Capasso et al.
patent: 2005/0111804 (2005-05-01), Bjarklev et al.
patent: 2005/0158898 (2005-07-01), Scherer
patent: 2006/0066493 (2006-03-01), Wang
U.S. Appl. No. 10/949,158, filed Sep. 24, 2004, entitled “Externally Powered Negatively Refracting Photonic Bandgap Medium,” by Shih-Yuan Wang.
Inoshita, Kyoji, et al., Room-Temperature Lasing Characteristics of Bend and Branch in Photonic Crystal Waveguide, Jpn. J. Appl. Phys. vol. 42 (2003), pp. 6887-6891.
Joannopoulos, John D., et al., “Photonic Crystals, Molding the Flow of Light,” Appendix D, pp. 127-129, Princeton University Press, Princeton, NJ, 1995.
Loncar, Marko, et al., “Low-threshold photonic crystal laser,” Appl. Phys. Lett., vol. 81, No. 15, Oct. 7, 2002, pp. 2680-2682.
Painter, O.J., et al., “Room Temperature Photonic Crystal Defect Lasers at Near-Infrared Wavelengths in InGaAsP,” Journal of Lightwave Technology, vol. 17, No. 11, Nov. 1999, pp. 2082-2088.
Hewlett--Packard Development Company, L.P.
Pak Sung
Tran Hoang
LandOfFree
Photonic crystal devices including gain material and methods... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photonic crystal devices including gain material and methods..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photonic crystal devices including gain material and methods... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2810183