Coherent light generators – Particular active media
Reexamination Certificate
2005-08-30
2005-08-30
Harvey, Minsun Oh (Department: 2828)
Coherent light generators
Particular active media
C372S041000, C372S069000
Reexamination Certificate
active
06937630
ABSTRACT:
To provide a laser oscillation method and a laser device, which use a laser medium such as an Nd:GdVO4crystal to which neodymium is doped in high concentration exceeding 1% in atomicity ratio, the laser medium comprised of the gadolinium-vanadate crystal to which neodymium as laser active ion is doped by a floating zone method such that concentration becomes exceeding 1% in atomicity ratio.
REFERENCES:
patent: 5140604 (1992-08-01), Alablanche et al.
patent: 5418808 (1995-05-01), Katoh et al.
patent: 5574740 (1996-11-01), Hargis et al.
patent: 5751751 (1998-05-01), Hargis et al.
patent: 2001/0022794 (2001-09-01), Urata et al.
Shonai et al., High-speed float zone growth of heavily Nd-doped YVO4 single crystals in Journal of Crystal Growth 2001, pp. 477-482.
Lavi et al. ,Efficient pumping scheme for neodymium-doped materials by direct excitation of the upper lasing level in Applied Optics/vol. 38, No. 36/Dec. 20 1999).
Shonai et al., “Float zone growth and laser performance of Nd:GdV04single crystals”, Journal of Crystal Growth Elsevier Netherlands, vol. 241, No. 1-2, pp. 159-164, (May 2002), XP004358331.
Lupei et al., “Highly efficient laser emission in concentrated Nd:YV04components under direcet pumping into the emitting level”, Optics Communications, North-Holland Publishing Co., NL, vol. 201, No. 4-6, pp. 431-435 (Jan. 15, 2002), XP004334665.
Shonai et al., “High-speed float zone growth of heavily Nd-doped YV04single crystals” Journal of Crystal Growth Elsevier Netherlands, vol. 233, No. 3, pp. 477-482, (Dec. 2001), XP004305547.
Zhang et al., “Characterization of the laser crystal Nd:GdV04”, Journal of the Optical Society of America B (Optical Physics) OPT. Soc. America USA, vol. 19, No. 1, pp. 18-27, (Jan. 2002), XP002313881.
Liu et al . et al., “High-power CW Nd:GdV04solid-state laser end-pumped by a diode-laser-array”, Optics Communications, North-Holland Publishing Co., Amsterdam, NL, vol. 164, No. 4-6, pp. 199-202, (Jun. 15, 1999), XP004169960.
Shonai, Tomohiro et al., “Preparation of thin Nd-doped YVO4 single crystal rods by the floating zone method, ” Materials Research Bulliten, vol. 35, 2000, pp. 225-232.
Higuchi Mikio
Kodaira Kohei
Machida Hiroshi
Ogawa Takayo
Shonai Tomohiro
Birch & Stewart Kolasch & Birch, LLP
Harvey Minsun Oh
Megaopto Co., Ltd.
NEC Tokin Corporation
Nguyen Dung
LandOfFree
Laser oscillation method and laser device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Laser oscillation method and laser device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser oscillation method and laser device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3505403