Coherent light generators – Particular beam control device – Nonlinear device
Reexamination Certificate
2005-09-23
2009-11-24
Nguyen, Dung T (Department: 2828)
Coherent light generators
Particular beam control device
Nonlinear device
C372S022000, C372S028000
Reexamination Certificate
active
07623556
ABSTRACT:
An optical cavity is combined with non-linear optical crystals and a laser source to generate light radiation at a frequency about 1.5 times the frequency of the initial laser source while having a wavelength 2/3 that of the initial laser source. The optical cavity comprises mirrors of relatively high reflectivity for optical radiation at a frequency of F/2, superior transmission for radiation at a frequency of 3/2*F to extract the final radiation and mirrors with relatively immediate or high reflectivity, or generally high transmission for radiation at a frequency F. The effective optical length of the cavity is precisely tunable by operating at least one of the mirrors that form the cavity. The optical cavity houses at least two non-linear optical crystals: at least one of which satisfies the phase-matching—quasi phase-matching—condition for non-linear conversion F 2*F/2, and at least one of which satisfies the phase-matching—or quasi phase-matching—condition for non-linear conversion F+F/23/2*F The length of the optical cavity, and its resonance modes, are actively stabilized such that the only process of frequency division is that by a factor of around 2.
REFERENCES:
patent: 5068546 (1991-11-01), Hemmerich et al.
patent: 5500865 (1996-03-01), Chakmakjian et al.
patent: 5894489 (1999-04-01), Haldorsson et al.
patent: 6219363 (2001-04-01), Fix et al.
patent: 2002/0122455 (2002-09-01), Knights et al.
patent: 2003/0112492 (2003-06-01), Huang
patent: 2006/0050748 (2006-03-01), Sumiyoshi et al.
patent: 2006/0176916 (2006-08-01), Zanger et al.
patent: 0767396 (1997-04-01), None
patent: WO 0190812 (2001-11-01), None
patent: WO 2004003653 (2004-01-01), None
patent: WO 2006033133 (2006-03-01), None
Ikegami et al., “Accuracy of an optical parametric oscillator as an optical frequency divider”,Optics Communications, North-Holland Publishing Co., Amsterdam, The Netherlands, vol. 127, No. 1, Jun. 1, 1996, pp. 69-72, XP004007489, ISSN: 0030-4018 (see Fig. 1, whole document).
Garashi et al., “Continuous-wave optical parametric oscillator based on periodically poled KTiOPO4”,Optics Letters, OSA, Optics Society of America, Washington, DC, USA, vol. 23, No. 22, Nov. 15, 1998, pp. 1739-1741, XP000802115, ISSN: 0146-9592 (see Fig. 1, whole document).
Nguyen Dung T
Pollack P.C.
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