Spectral peculiarities of radiation of travelling-wave two crystal optical parametric generator
نویسندگان
چکیده
منابع مشابه
1 Terahertz - Wave Parametric Generator ( TPG ) / Pumping source 1 . 1 Injection - seeded THz - wave Parametric Generator
Coherent tunable terahertz (THz) waves were successfully generated using an injection-seeded THz-wave parametric generator (TPG) based on laser light scattering from the A1-symmetry polariton mode of MgO:LiNbO3 crystals. THz-wave spectrum narrowing to the Fourier transform limit was achieved by injection seeding the idler wave (near-infrared Stokes). This resulted in a THz-wave output approxima...
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We present theoretical and experimental study of a continuous-wave, two-crystal, singly-resonant optical parametric oscillator (T-SRO) comprising two identical 30-mm-long crystals of MgO:sPPLT in a four- mirror ring cavity and pumped with two separate pump beams in the green. The idler beam after each crystal is completely out-coupled, while the signal radiation is resonant inside the cavity. S...
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15 صفحه اولTHEORY OF THE TRAVELLING-WAVE PARAMETRIC AMPLIFIER By Professor
The theory of a parametric travelling-wave amplifier is developed, including the pumping wave explicitly. Particular reference is made to two characteristics of such amplifiers which theories assuming a constant pumping-wave amplitude fail to predict. The first arises from ohmic attenuation in the line, and limits the useful length of line to a length of the order of (ot\a.i)~l, where <xi and 0...
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We present a continuous-wave dual-crystal optical parametric oscillator that generates signal waves of about 1.4μmwavelength with a tunable difference frequency 1ν between 0.64 and 5.3 THz. A model of the parametric gain in such a system indicates that the lowest reachable value for 1ν depends on the refractive index dispersion of the nonlinear material used. As a proof of principle, we demonst...
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ژورنال
عنوان ژورنال: Lithuanian Journal of Physics
سال: 2005
ISSN: 1648-8504
DOI: 10.3952/lithjphys.45506