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Proceedings Paper

Walk-off corrected KTP crystal for low pulse energy pumped optical parametric oscillation
Author(s): Xiaodong Mu; Huai-Chuan Lee; Helmuth Meissner
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Paper Abstract

A quasi-noncritical phase-matching (QNCPM) technology has been developed employing adhesive-free bonding (AFB) for high efficiency and high beam quality frequency conversion. A 16-layer KTP composite with total length of 32 mm was fabricated for a low pulse energy pumped 2-μm optical parametric oscillator (OPO). Our calculations indicate that the KTP composite has a 16 times lower walk-off effect and 16 times higher angle acceptance compared with the OPO in the same length single KTP crystal. Even only considering the walk-off correction, the threshold pump pulse energy in such a QNCPM OPO can be expected to be reduced by 256 times. In addition, the AFB technique was demonstrated to have uniform bonding quality and immeasurably small interface loss. Therefore, it can be expected to allow engineering of other critical phase-matched nonlinear optical devices into QNCPM devices.

Paper Details

Date Published: 23 February 2009
PDF: 7 pages
Proc. SPIE 7197, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII, 71970G (23 February 2009); doi: 10.1117/12.811761
Show Author Affiliations
Xiaodong Mu, Onyx Optics, Inc. (United States)
Huai-Chuan Lee, Onyx Optics, Inc. (United States)
Helmuth Meissner, Onyx Optics, Inc. (United States)


Published in SPIE Proceedings Vol. 7197:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII
Peter E. Powers, Editor(s)

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