Laser pumped tunable lasers
AssigneeLaser Energetics, Inc.
InventorsDavid Chester Brown, Jerry Wayne Kuper
Life of this patent
Estimating the term…
Abstract
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—both pulsed and CW—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.
Claims12
A tunable laser system pumped by a high brightness source, comprising:
- a alexandrite tunable laser gain medium disposed in a resonator defined by an input and an output mirror, wherein the pump light from the high brightness source is a green laser pump and is directed through the input mirror and focused onto the gain medium;
- wherein the pump spot size formed on the laser gain material is selected to produce an absorbed power pump intensity greater than a lasing threshold intensity of about 26 kW/cm2.
A tunable laser system comprising:
- a laser pump comprising a diode pump green laser;
- and,
- an alexandrite tunable laser gain medium disposed in a resonator defined by an input and an output mirror, wherein the pump light from said laser pump is directed through the input mirror and focused onto the gain medium.
A tunable laser system comprising:
- a laser pump;
- and,
- a tunable laser gain medium disposed in a resonator defined by an input and an output mirror, wherein the pump light from said laser pump is directed through the input mirror and focused onto the gain medium, and said tunable laser gain medium is a composite comprising doped alexandrite and undoped sapphire chrysoberyl.
Dependencies are inferred from the claim text.