Optical: systems and elements – Optical frequency converter – Dielectric optical waveguide type
Patent
1994-06-06
1996-03-26
Lee, John D.
Optical: systems and elements
Optical frequency converter
Dielectric optical waveguide type
359328, 385122, G02F 137
Patent
active
055025900
ABSTRACT:
A harmonic wave generating element of a discrete structure for reducing loss of light caused by scattering and improving efficiency of conversion has a polarization-inverted portion and a non-inverted portion periodically formed in a non-linear optical material to perform quasi phase matching between incident light and an n-th harmonic wave and to form a discrete optical waveguide structure, in which the boundary between the polarization-inverted portion and the non-inverted portion has a generally curved surface. And a waveguide structure is formed in the non-linear optical material and provides a mechanism for generating n-th harmonic wave and a lens-like focusing mechanism for facilitating the optical coupling of light at an end surface of incidence.
REFERENCES:
patent: 4856860 (1989-08-01), Silberberg et al.
patent: 4896933 (1990-01-01), Yano et al.
patent: 5036220 (1991-07-01), Byer et al.
patent: 5046817 (1991-09-01), Uenishi et al.
patent: 5249191 (1993-09-01), Sawaki et al.
patent: 5323262 (1994-06-01), Mizuuchi et al.
patent: 5339190 (1994-08-01), Yamamoto et al.
"Optical Second Harmonic Generation In Form Of Coherent Cerenkov Radiation From A Thin-Film Waveguide", Appl. Phys. Let., vol. 17, No. 10 Nov. 15, 1970, Tien et al., pp. 447-450.
"Phase-matchable Nonlinear Optical Interactions In Periodic Thin Films", Appl. Phys. Lett., vol. 21, No. 4, Aug. 15, 1972, Somekh et al., pp. 140-141.
"Balanced Phase Matching In Segmented KTiOPO.sub.4 Waveguides", Appl. Phys. Lett., vol. 56, No. 18, Apr. 30, 1990, Bierlein et al., pp. 1725-1727.
Hikari Tuushin Yooran, Survey of Optical Transmission, Hirayama et al., Kagaku Shinbunsha (1984) pp. 226-241, (no month).
Suzuki Kazuo
Yamamoto Yukihiro
Lee John D.
Nippon Steel Corporation
LandOfFree
Harmonic wave generating element for coherent light having short does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Harmonic wave generating element for coherent light having short, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Harmonic wave generating element for coherent light having short will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-920752