14 March 2016 Investigation of coupled optical parametric oscillators for novel applications
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In this proceedings article, we summarize our previous results on the novel applications using the coupled optical parametric oscillators (OPO’s). In a conventional OPO, a single pump wavelength is capable of generating a pair of the signal and idler beams by placing a bulk nonlinear crystal inside an OPO cavity. When a nonlinear crystal composite consisting of periodically-inverted KTiOPO4 (KTP) plates bonded together by the adhesive-free-bonded (AFB) technique is used instead of the bulk nonlinear crystal, the optical parametric oscillation takes place at two sets of the new wavelengths for the signal and idler beams due to the phase shifts occurring at the interfaces of the adjacent domains making up the composite. These two sets of the signal and idler waves are effectively generated by the two OPO’s being coupled to each other. These signals and idlers exhibit ultrastability in terms of their frequency separation. We review the progress made by us on the applications being realized by using such coupled OPO’s such as THz generation and restoration of the blurred images after propagating through a distortion plate and a phase plate simulating atmospheric turbulence.
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Yujie J. Ding, Yujie J. Ding, } "Investigation of coupled optical parametric oscillators for novel applications", Proc. SPIE 9746, Ultrafast Phenomena and Nanophotonics XX, 97460V (14 March 2016); doi: 10.1117/12.2204980; https://doi.org/10.1117/12.2204980

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