HgGa2S4 Crystal Secrets
HgGa2S4 Crystal Secrets
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.. [Clearly show entire summary] parametric oscillator. The two independently targeted beams were being made to overlap inside the crystal. The concentrating parameters of The 2 beams ended up in regards to the exact. The concentrating functionality produced by Boyd and Kleinman for tightly concentrated beams was prolonged to periodically poled crystals so that you can in good shape the temperature-tuning curve. A 0.66%/W performance was received for the difference frequency mixing method.
A manner-locked tunable dye laser has become made which can be synchronously pumped at high repetition charges because of the doubled output of the mode-locked Nd:YAG laser. The dye laser presents powerful pulses of 35 psec duration that happen to be greatly tunable, of near-rework-constrained bandwidth, As well as in time coincidence With all the pumping pulses.
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The substantial conversion efficiency and big selection of radiation wavelength tuning enables to anticipate this content might contend with AgGaS2, AgGaSe2, ZnGeP2 and GaSe crystals Despite the substantial problems of big size crystals progress course of action.
We report new experimental outcomes on the section-matching properties of yellow color HgGa2S4 crystals for harmonic generation of an Nd:YAG laser-pumped KTiOPO4 (KTP) optical parametric oscillator (OPO) and CO2 lasers inside the 0.944-10.5910 μm variety. Also, we existing new Sellmeier equations that provide a fantastic replica of your present experimental success plus the revealed facts factors for second-harmonic technology of CO2 laser radiation at nine.
brought on oscillations inside the idler wavelength of less than 200MHz in excess of 300s; the quick-phrase stability was under 3MHz
The temperature dependence of refractive indices of optical products is characterized During this work by what we simply call their normalized thermo-optic coefficients. These are decided experimentally as a result of interferometric measurements of thermal enlargement and of variations in optical thickness at a couple of laser wavelengths as function of temperature. A suitable vectorial formalism applied to these info permits predicting the thermal evolution in the refractive index everywhere in the useful range of transparency.
According to the theories of stage matching and satisfactory composition ratio, the affect of composition ratio within the frequency conversions of two types (phases) of Cd doped Hg1-xCdxGa2S4 was investigated. In thought of corresponding sellmeier equations, stage matching diagrams of second harmonic generation and optical parametric oscillations pumped by the favored Nd3+:YAG more info and Ho3+:YLF lasers were being calculated, and suitable composition ratios with several compositions.
The specific heat and thermal conductivity of HgGa2S4 are calculated. It can be concluded the mixed properties of HgGa2S4 crystals can offer for them a leading position Amongst the elements Utilized in nonlinear-optical devices for mid-IR-frequency conversion.
Assessment of latest, promising wide-band-gap nonlinear crystals with the mid-IR is presented. We focused on ternary and quaternary chalcogenides and based mostly on their own physical and chemical Attributes, which As well as linear and nonlinear optical Attributes, decide the performance of crystal usage in specific laser experiments. The correlation between the composition, composition and output parameters in addition to the tendencies in variations of the primary qualities for instance band hole, nonlinear susceptibility, laser damage threshold, and so forth, are shown.
Easy strategy for cutting down the depolarization loss resulting from thermally induced birefringence in reliable-point out lasers
We report a broadband optical parametric oscillator (OPO) pumped by a Yb-doped fiber laser procedure. By making use of a three hundred μm very long magnesium-doped periodically poled LiNbO 3 crystal since the parametric gain medium and configuring the OPO as being a chirped-pulse oscillator, we obtained mid-infrared emission owning an instantaneous bandwidth covering 3084�?466 nm. This outcome represents, to the very best of our expertise, the widest instantaneous bandwidth attained from the Yb-fiber-laser-pumped singly resonant OPO, demonstrating the huge opportunity of chirped-pulse oscillation in scaling the instantaneous bandwidth of ultra-rapid OPOs.
On this paper we theoretically investigate the most economical pump temporal form for pulsed Procedure of optical parametric oscillators (OPOs). The theoretical Investigation is made of fixing the optimal Command dilemma using the fee equation formalism. The OPO optimum buildup actions is derived for just about any OPO configuration, and we clearly show the exceptional pump pulse form is usually a double rectangle. The primary rectangle is optimized for the buildup approach, while the next one is optimized to the continuous state, and both equally depend otherwise about the OPO mirror reflectivities as well as the out there pump Vitality and highest peak energy.
Big difference frequency mixing of strongly targeted Gaussian beams in periodically poled LiNbO3 was investigated. The beams were centered inside the crystal without hurt. Mixing of cw and pulsed laser methods was used to reduce the thermal lensing effects inside this crystal. A low-electric power cw 1.064‐μm Nd:YAG laser beam was utilised as the pump, Whilst the sign beam came from the picosecond optical .