Diode-pumped laser

Details Diode-pumped laser Diode-pumped laser

2007-08-21

2007-08-21

Rodriguez, Armando (Department: 2828)

Coherent light generators

Particular pumping means

Pumping with optical or radiant energy

C372S069000

Reexamination Certificate

active

11012362

ABSTRACT:
A diode-pumped laser with a direct edge coupling of a pump beam is provided. The laser includes a microchip laser cavity optically pumped by a laser diode emitting an astigmatic pump beam having a substantially elliptical beam cross-section at an output laser diode facet. The microchip laser cavity is disposed at a substantial distance exceeding 0.001″ from the laser diode pump where the astigmatic pump beam has a greatly reduced ellipticity, providing high laser output efficiency without coupling lens element between the laser cavity and the laser diode pump. The pumping arrangement is favourable for single-mode lasing. In some embodiments, the laser cavity includes nonlinear crystal for intra-cavity SHG, a saturable absorber for passive Q-switching and mode locking, and a polarizing prism.

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