Linear cavity tunable laser

Details Linear cavity tunable laser Linear cavity tunable laser

2006-01-03

2006-01-03

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular beam control device

Tuning

C372S023000, C372S098000, C372S108000

Reexamination Certificate

active

06982998

ABSTRACT:
A laser source includes a laser medium having a back facet and a front surface, whereby the laser medium is adapted to emit a laser beam through the front surface into an external cavity defined in length by a cavity end mirror reflecting the laser beam back towards the laser medium. A wavelength tunable filter is arranged between the laser medium and the cavity end mirror adapted for tuning the wavelength of the laser beam. The laser medium, the wavelength tunable filter, and the cavity end mirror are arranged in a spatially linear cavity structure substantially in a line without angular redirection of the laser beam in the cavity between the laser medium and the cavity end mirror. At least one portion of the laser beam within the cavity after passing the wavelength tunable filter and before again passing the laser medium is coupled out as an output beam of the laser source, and the cavity end mirror is provided to be partly transparent for coupling out a first output beam.

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