A multi-optical parametric oscillator with actively regulated energy distribution ratio
An optical parametric oscillator and distribution ratio technology, used in lasers, laser parts, phonon exciters, etc., can solve problems such as inability to dynamically match, change or correct, achieve no energy loss, optimize the resonant cavity structure, Controllable effect
Active Publication Date: 2018-12-18
CHANGCHUN UNIV OF SCI & TECH
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However, these methods are all passive methods. Once the parameters are determined, they cannot be changed or corrected during the operation of the multi-optical parametric oscillator, and with the gradual increase of the fundamental frequency optical injection power density, the corresponding inverse conversion will also change accordingly. The optimization parameters that have been set obviously cannot achieve dynamic matching in the entire range of inverse conversion changes
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[0026] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily realize them. Also, for clarity, parts not related to describing the exemplary embodiments are omitted in the drawings.
[0027] In the present disclosure, it should be understood that terms such as "comprising" or "having" are intended to indicate the presence of features, numbers, steps, acts, components, parts or combinations thereof disclosed in the specification, and are not intended to exclude one or a plurality of other features, numbers, steps, acts, parts, parts or combinations thereof exist or are added.
[0028] In addition, it should be noted that, in the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings...
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The present disclosure discloses a multi-optical parametric oscillator (MOPO) with actively regulated energy group distribution ratio (EGDR), the multi-optical parametric oscillator includes a first laser, a first polarizer, a first focusing lens, an optical isolator, a 1 / 2 wave plate, a second focusing lens, a first cavity mirror, an aperiodically polarized lithium niobate crystal, a second cavity mirror, an aperiodically polarized lithium niobate crystal loaded with a Y-direction voltage, a bonded lithium niobate crystal, a third cavity mirror, a third focusing lens, a second polarizer, anda second laser. According to the invention, an aperiodic polarized lithium niobate crystal loaded with Y-direction voltage and a bonded aperiodically polarized lithium niobate crystal are arranged ina multi-optical parametric oscillation cavity, , through combination with the second extracavity laser, the rotation of the polarization state and energy conversion of the signal light in the oscillation cavity is achieved, the change of the ratio of the signal light energy in the cavity is achieved by adjusting the power of the second extracavity laser, and finally the purpose of actively controlling the output idle light energy component is achieved.
Description
technical field [0001] The present disclosure relates to the field of solid-state lasers, in particular to a multi-optical parametric oscillator with active regulation of energy component distribution ratio. Background technique [0002] Driven by the demand for mid-infrared multi-wavelength tunable lasers in cutting-edge scientific and technological fields such as terahertz light source, difference frequency absorption radar, and fine laser spectrum measurement, multi-optical parametric oscillators have developed along with optical parametric oscillation technology (OPO) and quasi-phase matching technology. (QPM) research in-depth and gradually developed. The traditional optical parametric oscillation is to use the "reciprocal vector" formed by the specific periodic polarization structure of the crystal to compensate the phase mismatch of the parametric light, that is, the quasi-phase matching process. Corresponding relationship. A multi-optical parametric oscillator (MOP...
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CPCH01S3/108H01S3/1083
Inventor 于永吉刘航王超金光勇董渊
Owner CHANGCHUN UNIV OF SCI & TECH