Coherent light generators – Particular beam control device – Nonlinear device
Reexamination Certificate
2008-01-23
2009-11-24
Nguyen, Dung T (Department: 2828)
Coherent light generators
Particular beam control device
Nonlinear device
C372S021000, C372S029014
Reexamination Certificate
active
07623559
ABSTRACT:
After forming domain inverted layers3in an LiTaO3substrate1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer8is formed, where an increase in refractive index generated during high-temperature annealing is lowered, thereby providing a stable optical wavelength conversion element. Thus, the phase-matched wavelength becomes constant, and variation in harmonic wave output is eliminated. Consequently, with respect to an optical wavelength conversion element utilizing a non-linear optical effect, a highly reliable element is provided.
REFERENCES:
patent: 3634614 (1972-01-01), Geusic et al.
patent: 4665529 (1987-05-01), Baer et al.
patent: 4667331 (1987-05-01), Alferness
patent: 4907238 (1990-03-01), Chun
patent: 4919506 (1990-04-01), Covey
patent: 4925263 (1990-05-01), Sanford et al.
patent: 5036220 (1991-07-01), Byer et al.
patent: 5042909 (1991-08-01), Garcia, Jr. et al.
patent: 5113524 (1992-05-01), Hirota
patent: 5130838 (1992-07-01), Tanaka et al.
patent: 5177758 (1993-01-01), Oka et al.
patent: 5295218 (1994-03-01), Agostinelli
patent: 5303247 (1994-04-01), Yamamoto et al.
patent: 5415978 (1995-05-01), Asami et al.
patent: 5452312 (1995-09-01), Yamamoto et al.
patent: 5590145 (1996-12-01), Nitta
patent: 5614961 (1997-03-01), Gibeau
patent: 5682398 (1997-10-01), Gupta
patent: 5838709 (1998-11-01), Owa
patent: 6183933 (2001-02-01), Ishikawa et al.
patent: 6483556 (2002-11-01), Karakawa et al.
patent: 51-93219 (1976-08-01), None
patent: 58-044785 (1983-03-01), None
patent: 61-22518 (1986-05-01), None
patent: 61-99827 (1986-06-01), None
patent: 62-274788 (1987-11-01), None
patent: 02-199975 (1990-08-01), None
patent: 02-221995 (1990-09-01), None
patent: 03-38984 (1991-02-01), None
patent: 03-191332 (1991-08-01), None
patent: 04-000783 (1992-01-01), None
patent: 04-18823 (1992-02-01), None
patent: 04-45478 (1992-02-01), None
patent: 04-100088 (1992-04-01), None
patent: 04-296731 (1992-10-01), None
patent: 04-315120 (1992-11-01), None
patent: 04-507299 (1992-12-01), None
patent: 05-034611 (1993-02-01), None
patent: 05-107421 (1993-04-01), None
patent: 05-173094 (1993-07-01), None
patent: 5-232536 (1993-09-01), None
patent: 05-232605 (1993-09-01), None
patent: 05-249521 (1993-09-01), None
patent: 06-011750 (1994-01-01), None
patent: 06-045669 (1994-02-01), None
patent: 06-18823 (1994-03-01), None
patent: 6-148444 (1994-05-01), None
patent: 06-194708 (1994-07-01), None
patent: 06-258597 (1994-09-01), None
patent: 6-265956 (1994-09-01), None
patent: 6-273814 (1994-09-01), None
patent: 06-295159 (1994-10-01), None
patent: 06-308408 (1994-11-01), None
patent: 6-350168 (1994-12-01), None
patent: 7-15077 (1995-01-01), None
patent: 7-23329 (1995-04-01), None
patent: 07-099360 (1995-04-01), None
patent: 08-194196 (1996-07-01), None
patent: WO 94/15237 (1994-07-01), None
Mizuuchi, K., et al., “Second-Harmonic Generation of Blue Light in a LiTaO3Waveguide”, Applied Physics Letters, vol. 58, No. 24, pp. 2732-2734 (1991).
International Search Report corresponding to PCT/JP96/01472 dated Oct. 8, 1996.
Chinese Office Action dated Jul. 10, 2003.
Ahlfeldt, H., et al., “Postfabrication Changes and Dependence on Hydrogen Concentration of the Refractive Index of Proton-Exchanged Lithium Tantalate Waveguides”, pp. 717-727 (Jan. 15, 1994).
Chinese Office Action dated Apr. 29, 2005.
Chinese Office Action dated Jun. 3, 2005.
Chinese Office Action dated Jun. 29, 2005 (first).
Chinese Office Action dated Jun. 29, 2005 (second).
Official Action for JP 2006-256359 Apr. 1, 2008.
Kato Makoto
Kitaoka Yasuo
Mizuuchi Kiminori
Yamamoto Kazuhisa
Nguyen Dung T
Panasonic Corporation
RatnerPrestia
LandOfFree
Optical device, laser beam source, laser apparatus and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical device, laser beam source, laser apparatus and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical device, laser beam source, laser apparatus and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4102484