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Proceedings Paper

Effect of intracavity diffusion-bonded optical elements on laser performance
Author(s): Boaz Rubinstein; Steven M. Jackel; Revital Feldman; Yehoshua Shimony
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Paper Abstract

Diffusion-bonded surfaces inside a cavity usually have little effect on a laser beam when oriented perpendicular to the beam direction. They may have a severe effect on lasing efficiency and mode structure when oriented parallel to the beam. Characterization of the interface between diffusion bonded elements and the understanding of its effect on lasing is, Therefore, important. Isolating the effect of the bonding interface from effects such as an index difference between the bulks, we used bonded BK7 slabs as the bonded element. We measured the reflections arising from the bonding interface, and then put the slabs as a passive element inside a hemispherical resonator. It was found that even for similar materials, with no refraction index difference, significant reflections occur at the bonding interface for oblique angles of incidence. When put intracavity parallel to beam axis the bonded slabs caused a significant power loss and forced higher order lasing modes. The power loss depended on both, the transmission through the interface and the size of the interface cross section relative to beam diameter.

Paper Details

Date Published: 1 September 2004
PDF: 4 pages
Proc. SPIE 5460, Solid State Lasers and Amplifiers, (1 September 2004); doi: 10.1117/12.549030
Show Author Affiliations
Boaz Rubinstein, Soreq Nuclear Research Ctr. (Israel)
Steven M. Jackel, Soreq Nuclear Research Ctr. (Israel)
Revital Feldman, Soreq Nuclear Research Ctr. (Israel)
Yehoshua Shimony, Soreq Nuclear Research Ctr. (Israel)

Published in SPIE Proceedings Vol. 5460:
Solid State Lasers and Amplifiers
Alphan Sennaroglu; James G. Fujimoto; Clifford R. Pollock, Editor(s)

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