Lockheed Martin Corporation

Deborah A Alterman

John D Minelly

Dennis D Lowenthal

Dawn M Meekhof

Ananda K Cousins

Apparatus and method for designing and operating a solid-state laser that compensates for thermal lensing such that lasing instability is maintained at high pumping power. In some embodiments, the laser is an optically pumped semiconductor laser (OPSL). In some embodiments, a concave end facet is formed on the OPSL that at least compensates for thermal lensing at high pump power. In some embodiments, an external mirror is used for at least one end of the OPSL, wherein the external mirror at least compensates for thermal lensing at high pump power.

System and method for unstable-resonator optically pumped semiconductor lasers

An apparatus and that provide an optical-fiber amplifier having at least one erbium-doped fiber section and an optical pump coupled to the erbium-doped fiber section, wherein the apparatus is operable to amplify signal pulses to high energy in the erbium-doped fiber section, the pulses having a wavelength in the range of about 1565 nm to about 1630 nm. In some embodiments, the amplifying fiber is ytterbium free.

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Seattle, WA, United States of America

Deborah A Alterman