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Proceedings Paper

Intracavity second harmonic generation in passively Q-switched Nd:YAG laser
Author(s): Shaul Pearl; Yehoshua Shimony; Haim Lotem; Michael Roth; Nahum Angert
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Paper Abstract

Intracavity second harmonic generation of a passively Q- switched cw Nd:YAG laser is studied. The saturable absorber used was a Cr4+:YAG crystal, and the second harmonic generator was a flux grown KTP crystal. The results were compared to a case of acousto-optic Q-switched case. To allow for a unidirectional second harmonic output beam, a folded laser cavity was constructed. However, due to a partially transmitting mirror in the cavity, two output counter propagating second harmonic beams, were generated. Unexpectedly, 180 degrees out of phase periodic power variations of the two output beams were observed, as a function of the distance from the nonlinear crystal to the mirror.

Paper Details

Date Published: 22 September 1997
PDF: 6 pages
Proc. SPIE 3110, 10th Meeting on Optical Engineering in Israel, (22 September 1997); doi: 10.1117/12.281337
Show Author Affiliations
Shaul Pearl, Nuclear Research Ctr.-Negev (Israel)
Yehoshua Shimony, Nuclear Research Ctr.-Negev (Israel)
Haim Lotem, Nuclear Research Ctr.-Negev (Israel)
Michael Roth, The Hebrew Univ. of Jerusalem (Israel)
Nahum Angert, The Academic College of Judea and Samaria (Israel)


Published in SPIE Proceedings Vol. 3110:
10th Meeting on Optical Engineering in Israel

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