Bandwidth control technique for a laser

Coherent light generators – Particular beam control device

Reexamination Certificate

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C372S102000

Reexamination Certificate

active

07079556

ABSTRACT:
A technique for bandwidth control of an electric discharge laser. Line narrowing equipment is provided having at least one piezoelectric drive and a fast bandwidth detection means and a bandwidth control having a time response of less than about 1.0 millisecond. In a preferred embodiment wavelength tuning mirror is dithered at dither rates of more than 500 dithers per second within a very narrow range of pivot angles to cause a dither in nominal wavelength values to produce a desired effective bandwidth of series of laser pulses.

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