High efficiency wavelength converters

Details High efficiency wavelength converters High efficiency wavelength converters

2007-01-30

2007-01-30

Lee, John D. (Department: 2874)

Optical: systems and elements

Optical frequency converter

Dielectric optical waveguide type

C385S122000, C117S003000

Reexamination Certificate

active

10925303

ABSTRACT:
A method is provided for forming a waveguide region within a periodically domain reversed ferroelectric crystal wherein the waveguide region has a refractive index profile that is vertically and horizontally symmetric. The symmetric profile produces effective overlapping between quasi-phasematched waves, a corresponding high rate of energy transfer between the waves and a symmetric cross-section of the radiated wave. The symmetric refractive index profile is produced by a method that combines the use of a diluted proton exchange medium at a high temperature which produces a region of high index relatively deeply beneath the crystal surface, followed by a reversed proton exchange which restores the original crystal index of refraction immediately beneath the crystal surface.

REFERENCES:
patent: 4820011 (1989-04-01), Umegaki et al.
patent: 4946240 (1990-08-01), Yamamoto et al.
patent: 4952013 (1990-08-01), Harada et al.
patent: 5205904 (1993-04-01), Yamamoto et al.
patent: 5313543 (1994-05-01), Matsuda et al.
patent: 5436757 (1995-07-01), Okazaki et al.
patent: 5515471 (1996-05-01), Yamamoto et al.
patent: 5872884 (1999-02-01), Mizuuchi et al.
patent: 6195198 (2001-02-01), Hatori
patent: 6295159 (2001-09-01), Lung-Han et al.
patent: 6363189 (2002-03-01), Minakata et al.
patent: 6519077 (2003-02-01), Mizuuchi et al.
patent: 2002/0179912 (2002-12-01), Batchko et al.
patent: 2003/0127042 (2003-07-01), Tsou et al.
Korkishko et al, “Reverse Proton Exchange For Buried Waveguides In LiNbO3”, J. Opt. Soc. Am. A, vol. 15, No. 7, Jul. 1998, pp. 1838-1842.
“Reverse Exchange Method for Burying Proton Exchanged Waveguides”, by J. L. Jackel et al., Electronics Letters, Jul. 18, 1991, vol. 27, No. 15, pp. 1360-1361.

Affiliated with

Also associated with

Rating

High efficiency wavelength converters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High efficiency wavelength converters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High efficiency wavelength converters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3781496