Lithium niobate Q-switch to prevent pre-lasing of high gain lasers operating over a wide temperature range

Dieter H. Jundt; Peter E. MacKay

doi:10.1117/12.2079915

20 February 2015 Lithium niobate Q-switch to prevent pre-lasing of high gain lasers operating over a wide temperature range

Dieter H. Jundt, Peter E. MacKay

Author Affiliations +

Proceedings Volume 9346, Components and Packaging for Laser Systems; 93460M (2015) https://doi.org/10.1117/12.2079915
Event: SPIE LASE, 2015, San Francisco, California, United States

Abstract

Because of its ease of growth and large electro-optic effect, lithium niobate is the preferred choice for Q-switching mobile lasers. Temperature-induced pyro-electric charges however may lead to premature lasing. We manufactured and characterized temperature-stable LN Q-switch. A thermo-chemical anneal was performed creating a conductive material layer 0.5mm thick with increased conductivity. While this increases optical insertion loss by a few percent, this is tolerable in high gain lasers. We present details of treatment, the surface charge creation and dissipation mechanism and the setup used to assess the cold-performance used to demonstrate improved charge dissipation when compared to untreated crystals.

Citation Download Citation

Dieter H. Jundt and Peter E. MacKay "Lithium niobate Q-switch to prevent pre-lasing of high gain lasers operating over a wide temperature range", Proc. SPIE 9346, Components and Packaging for Laser Systems, 93460M (20 February 2015); https://doi.org/10.1117/12.2079915

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