Hybrid laser resonator with special line narrowing

Details Hybrid laser resonator with special line narrowing Hybrid laser resonator with special line narrowing

1998-04-29

1999-08-31

Scott, Jr., Leon

Coherent light generators

Particular resonant cavity

372 95, 372 98, 372 51, 372106, 372102, H01S 308

Patent

active

059463376

ABSTRACT:
A laser system having a resonant cavity that is stable in one axis so that a wavelength selector can be used for producing a narrow line output, and is unstable in an orthogonal axis for high energy extraction efficiency and for low output beam divergence. The resonant cavity terminates at one end with a cylindrical mirror and at the other end with a dispersive wavelength selector. A gain medium is disposed in the resonant cavity, and is excited by a power supply to generate a laser beam that oscillates in the resonant cavity. A portion of the laser beam is coupled out of the resonant cavity as an output laser beam. The cylindrical mirror has a cylindrical reflecting surface oriented to diverge the laser beam at a first azimuthal angle relative to an axis of the resonant cavity. The dispersive wavelength selector disperses the laser beam as a function of wavelength at a second azimuthal angle relative to the resonant cavity axis. The second azimuthal angle is orthogonal to the first azimuthal angle.

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Bigio, Irving J. & Slatkine, Michael, "Injection-Locking Unstable Resonator Excimer Lasers", IEEE Journal of Quantum Electronics, Sep. 1983, vol. QE-19, No. 9, pp. 1426-1436.

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