Coherent light generators – Particular pumping means – Pumping with optical or radiant energy
Reexamination Certificate
2004-09-30
2008-08-12
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular pumping means
Pumping with optical or radiant energy
C372S069000
Reexamination Certificate
active
07411990
ABSTRACT:
A solid-state laser crystal constituting a laser-diode-excited solid-state laser apparatus or an optical fiber constituting a fiber laser apparatus or fiber laser amplifier is doped with one of Ho3+, Sm3+, Eu3+, Dy3+, Er3+, and Tb3+so that a laser beam is emitted from the solid-state laser crystal or the optical fiber, or incident light of the fiber laser amplifier is amplified, by one of the transitions from5S2to5I7, from5S2to5I8, from4G5/2to6H5/2, from4G5/2to6H7/2, from4F3/2to6H11/2, from5D0to7F2, from4F9/2to6H13/2, from4F9/2to6H11/2, from4S3/2to4I15/2, from2H9/2to4I13/2, and from5D4to7F5. The above solid-state laser crystal or optical fiber is excited with a GaN-based compound laser diode.
REFERENCES:
patent: 5084890 (1992-01-01), Brierley
patent: 5237578 (1993-08-01), Amano
patent: 5388110 (1995-02-01), Snitzer
patent: 5422907 (1995-06-01), Bhargava
patent: 5525932 (1996-06-01), Kelkar et al.
patent: 5727007 (1998-03-01), Smart et al.
patent: 6125132 (2000-09-01), Okazaki
patent: 6154598 (2000-11-01), Gavrilovic et al.
patent: 6411432 (2002-06-01), Kasamatsu
patent: 6490309 (2002-12-01), Okazaki et al.
patent: 6510276 (2003-01-01), Jain et al.
patent: 3-86405 (1991-04-01), None
patent: 4-318988 (1992-11-01), None
patent: 2001-36168 (2001-02-01), None
patent: 2001-36175 (2001-02-01), None
L. Esterowitz et al, Blue light emission by a Pr:LiYF4-laser operated at room temperature, Journal of Applied Physics, vol. 48. No. 2, Feb. 1977, Cambridge, Massachusetts.
D. Sandrock et al, Efficient Continuous Wave-Laser Emission of Pr3+-Doped Fluorides at Room Temperature, Applied Physics B 58, 149-151 (1994), Hamburg, Germany.
R.B. Smart et al, CW room temperature operation of praseodymium-doped fluorozirconate glass fibre lasers in the blue-green, green and red spectral regions, Optics Communications 86 (1991) 337-340, North Holland.
Etsuko Ishikawa et al, Rare earth doped fiber for optical amplifiers operating around 1.3μm, Technical Report of IEICE, LQE95-30 (Jun. 1995) p. 83-89, Tokyo, Japan.
Chicklis et al., “Deep Red Laser Emission in Ho:YLF,” IEEE Journal of Quantum Electronics, vol. QE-13, No. 11, Nov. 1977, pp. 893-895.
Brierley et al., “Lasing at 2.08 μm and 1.38 μm in a Holmium Doped Fluoro-Zirconate Fibre Laser,” Electronics Letters, vol. 24, No. 9, 28thApr. 1988, pp. 539-540.
Katoh Takayuki
Ohtsuka Hisashi
Okazaki Yoji
FUJIFILM Corporation
Harvey Minsun
Nguyen Tuan N.
Sughrue & Mion, PLLC
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