US Government As Represented by the Secretary of the Army

Richard A Utano

Suresh Chandra

John M Hall

Dallas N Barr

Geraldine H Daunt

Toomas H Allik

Timothy R Robinson

A solid-state dye laser and technique for achieving multiple output wavelength laser emission from a single solid-state dye laser media containing multiple dyes without tuning elements. When the multiple dyes within the single solid-state host are excited with a single wavelength pump source to lase, there results simultaneous multi-spectral output proportional to dye concentration ratios.

Solid-state dye laser utilizing multiple dyes in single host

An optical assembly using a centrally-obscured catadioptric optical objece that provides two different focal planes using the same set of optics. Both optical paths share the same optic axis and common line-of-sight. One focal plane is optimized for use with a high performance GEN II image intensifier tube, and the other is used for either laser receiver or emitter devices.

Catadioptric multi-functional optical assembly

A laser oscillator system which transmits laser input beam pulses through optical diode and into a plurality of time-multiplexed phase conjugate amplifier which sequentially amplify in chronological order subsequent input beam pulses. The optical diode is positioned on the oscillator laser beam pulse axis and is comprised of a polarizer, a half-wave plate which rotates the pulse polarity by 45.degree. in one direction and a Faraday rotator which rotates the pulse polarity 45.degree. in the opposite direction. A plurality of grouped Pockels cells and polarizers are positioned on the oscillator axis past the Faraday rotator. The polarizers route the input beam pulse toward a phase conjugate amplifier when a half-wave voltage is applied to the Pockels cell. Each phase conjugate amplifier has a phase conjugate mirror, at its output for retroreflecting the once amplified input laser beam pulse back therethrough for a second amplification. The twice amplified laser beam pulse is returned back to and reflected off the beam splitter back through the Pockels cell. The pockels cell rotates the pusle back to its orignial polarity as the pulse returns to the optical diode. Teh faraday rotator rotates the pulse 45.degree. and the half-wave plate rotates the pulse another 45.degree. for a total of 90.degree.. The 90.degree. rotated amplified output pulses from the time multiplexed amplifiers are reflected off the polarizer and out the laser system.

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Winterpark, FL, United States of America

Richard A Utano