Optical Parametric Oscillator with Bi-noncolinear, Porro Prism Cavity

Nabors, C. D.; Frangineas, George

doi:10.1364/assl.1997.vl14

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…High beam quality was achieved by using special collinear phase matching [3], special noncollinear phase matching [4], image rotation resonators [3,5,6] and unstable resonators combined with a long pump pulse duration [7].…”

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confidence: 99%

Improved idler beam quality via simultaneous parametric oscillation and signal-to-idler conversion

2014

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We report on an improvement of idler beam quality in a singly resonant optical parametric oscillator (OPO), where the resonant signal is converted to the idler via an additional difference frequency generation (DFG) process. The two processes are phase matched simultaneously by a quasi-periodically poled nonlinear crystal. Whereas back-conversion of the signal and idler to the pump frequency distorts the idler beam in a standard OPO, in a quasi-periodic OPO the DFG process reduces the signal intensity, leading to suppression of back-conversion and, hence, improvement in idler beam quality. Indeed, the experimental results show under the same pump power a significant improvement in idler beam quality for the quasi-periodic OPO (1≤M2≤2.1) as compared with the standard OPO (3.2≤M2≤5.3).

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confidence: 99%

Improved idler beam quality via simultaneous parametric oscillation and signal-to-idler conversion

2014

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“…Since the first demonstration of OPO [1], they have been a focus of numerous scientific studies, for example [2][3][4]. Furthermore, there are a broad range of commercial OPO products available [5] and a large number of patents have been issued describing optimal designs of OPO, recent ones including [6][7][8][9]. However, there is still an ongoing struggle to improve OPO efficiency and beam quality.…”

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confidence: 99%

Beam patterns in an optical parametric oscillator set-up employing walk-off compensating beta barium borate crystals

et al. 2013

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This paper describes the investigation of an optical parametric oscillator (OPO) set-up based on two beta barium borate (BBO) crystals, where the interplay between the crystal orientations, cut angles and air dispersion substantially influenced the OPO performance, and especially the angular spectrum of the output beam. Theory suggests that if two BBO crystals are used in this type of design, they should be of different cuts. This paper aims to provide an experimental manifestation of this fact. Furthermore, it has been shown that air dispersion produces similar effects and should be taken into account. An x-ray crystallographic indexing of the crystals was performed as an independent test of the above conclusions.

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