Fiber laser

V Baev, A Stark, S Salewski, W Thurau… - US Patent …, 2006 - Google Patents
A fiber laser with a fiber for laser light generation having an entrance end and an exit end
comprises a pump light source for generating pump light to be coupled via the entrance side …

Sensor-guided threat countermeasure system

BC Stuart, LA Hackel, MR Hermann… - US Patent …, 2012 - Google Patents
GENERATORIANPLIFER laser system for producing a broadband beam and means for
directing the broadband beam from the target to the threat. The countermeasure system …

Mitigation of photodarkening to achieve laser oscillation and amplification with highly doped fibers

S Sinha, MJF Digonnet, RL Byer, J Limpert - US Patent 7,477,672, 2009 - Google Patents
Photodarkening in active fiber or waveguide devices (eg lasers, amplifiers, and incoherent
sources such as ASE sources) can be reduced by altering the dopant concentration along …

Laser-diode-excited laser apparatus, fiber laser apparatus, and fiber laser amplifier in which laser medium doped with one of Ho3+, Sm3+, Eu3+, Dy3+, Er3+, and …

H Ohtsuka, Y Okazaki, T Katoh - US Patent 6,816,532, 2004 - Google Patents
Solid-State laser apparatus or an optical fiber constituting a fiber laser apparatus or fiber
laser amplifier is doped with one of Ho", Sm", Eu", Dy, Er", and Tb" so that a laser beam is …

Optical waveguide

MA Haase, JY Zhang - US Patent 6,832,034, 2004 - Google Patents
BACKGROUND Optical fiber communication systems are becoming prevalent. The optical
fiber system can comprise an optical fiber, and a wide variety of other optical devices for …

Multi-wavelength pump method for improving performance of erbium-based lasers

RK Shori - US Patent 7,633,990, 2009 - Google Patents
(57) ABSTRACT A method for increasing the efficiency of generating lasers by pumping two
separate wavelengths into an erbium-based medium to populate the Ia state and …

Waveguide laser light source suitable for projection displays

H Mönch, G Heusler - US Patent App. 10/569,717, 2007 - Google Patents
The invention relates to a semiconductor diode laser used to pump a waveguide and their
use as light source. A waveguide laser (15) according to the present invention producing …

Optical waveguide

MA Haase, JY Zhang - US Patent 6,909,831, 2005 - Google Patents
BACKGROUND Optical fiber communication systems are becoming prevalent. The optical
fiber system can comprise an optical fiber, and a wide variety of other optical devices for …

Laser-diode-excited laser apparatus, fiber laser apparatus, and fiber laser amplifier in which laser medium doped with one of Ho3+, Sm3+, Eu3+, Dy3+, Er3+, and …

H Ohtsuka, Y Okazaki, T Katoh - US Patent 7,154,930, 2006 - Google Patents
(57) 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 …

Low voltage defect super high efficiency diode sources

V Khalfin, J Abeles, M Kwakernaak… - US Patent App. 10 …, 2005 - Google Patents
A high efficiency, low Voltage defect laser, and a method of forming a high efficiency laser.
The low Voltage defect laser includes at least one p-clad layer, at least one n-clad layer, and …