Laser Energetics, Inc.

Toptica Phtonics Inc. USA

Jerry Kuper

David Chester Brown

Frank Diedrich

The invention relates to an optical isolator comprising a polarizer adapted to polarize a beam of incident light to form a beam of polarized light, an analyzer adapted to transmit said beam of polarized light and to polarize back-reflected light, a magneto-optical element disposed between the polarizer and the analyzer, which magneto-optical element rotates the polarization direction of said beam of polarized light, and a magnet generating a magnetic field penetrating said magneto-optical element. It is an object of the invention to provide a temperature-compensated optical isolator that achieves a high degree of isolation at a minimum insertion loss over a given temperature range, without any need of manual tuning. The invention proposes to make provision for an automatic actuator mechanically connected to said magneto-optical element to move said magneto-optical element relative to said magnet in response to a temperature variation or in response to a variation of the wavelength of the incident light. Alternatively, the automatic actuator may be mechanically connected to said magnet to move said magnet relative to said magneto-optical element.

Temperature-compensated optical isolator

A laser pumped tunable laser system is disclosed directed to achieving tunable outputs with high wall plug efficiencies. In particular, green laser pumped alexandrite lasers are discussed&#x2014;both pulsed and CW&#x2014;where the wall plug efficiencies of greater than 2% can be achieved using practical, commercially available pump lasers. In alternative approaches, frequency converted tunable radiation in the UV is achieved with high efficiency from compact, high beam quality devices.

Laser pumped tunable lasers

A laser pumped tunable laser system is disclosed directed to achieving tunable outputs with high wall plug efficiencies. In particular, green laser pumped alexandrite lasers are discussed&#x2014;both pulsed and CW&#x2014;wherein the wall plug efficiencies of greater than 2% can be achieved using practical, commercially available pump lasers. In alternative approaches, frequency converted tunable radiation in the UV is achieved with high efficiency from compact, high beam quality devices.

Growing community of inventors

Pittsford, NY, United States of America

Jerry Kuper