Q-switched laser

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6778563
APP PUB NO 20020181513A1
SERIAL NO

09873372

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A microchip laser arrangement is disclosed. The arrangement is operative to emit Q-switched laser pulses at 1.54 .mu.m. The lasing medium of the laser arrangement is preferably comprised of Yb:Er-glass, and the Q-switch is comprised of a saturable absorber of cobalt doped spinel crystal. The lasing medium is preferably bonded to the absorber to form a monolithic body, upon the surface of which there are deposited dielectric stacks forming a resonant laser cavity. Pumping of the active medium is performed by means of an InGaAs laser diode emitting light at 0.97 .mu.m, corresponding well with the absorption of the Yb:Er-glass material.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
COBOLT ABSTOCKHOLM11

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Denker, Boris Ilich Moscow, RU 1 6
Galagan, Boris Ivanovic Moscow, RU 1 6
Karlsson, Gunnar Kungsangen, SE 4 23
Laurell, Fredrik Danderyd, SE 12 76
Pasiskevicius, Valdas Lidingo, SE 4 8
Sverchkov, Sergei Evgenievich Moscow, RU 1 6

Cited Art Landscape

Patent Info (Count) # Cites Year
 
FURUKAWA ELECTRIC NORTH AMERICA, INC. (1)
* 5923684 Fiber amplifier with multiple pass pumping 15 1997
 
COMMISSARIAT A L'ENERGIE ATOMIQUE (3)
* 5495494 Self-aligned, monolithic, solid microlaser with passive switching by a saturable absorber and a production process therefor 40 1994
* 5982802 Solid microlaser with optical pumping by vertical cavity semiconductor laser 28 1997
* 6023479 Solid microlaser passively switched by a saturable absorber and its production process 22 1998
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
INNOLIGHT INNOVATIVE LASER UND SYSTEMTECHNIK GMBH (1)
8837535 Microcrystal laser for generating laser pulses 1 2011
 
COHERENT LASERSYSTEMS GMBH & CO. KG (1)
8964800 Microcrystal laser for generating laser pulses 0 2014
 
THE UNITED STATES OF AMERICA (1)
* 6904074 Diode-pumped microlaser 0 2003
 
TOPCON POSITIONING SYSTEMS, INC. (2)
* 7649920 Q-switched microlaser apparatus and method for use 10 2007
* 2008/0247,425 Q-switched microlaser apparatus and method for use 11 2007
 
COHERENT GMBH (1)
8948220 Wavelength-stabilized microcrystal laser 0 2012
 
BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. (2)
* 7203209 System and method for a passively Q-switched, resonantly pumped, erbium-doped crystalline laser 18 2005
* 2006/0159,132 System and method for a passively Q-switched, resonantly pumped, erbium-doped crystalline laser 4 2005
* Cited By Examiner