5 Simple Techniques For HgGa2S4 Crystal
5 Simple Techniques For HgGa2S4 Crystal
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053 μm. The absorption spectrum of ammonia was presented to show the feasibility on the created optical parametric oscillator process for spectroscopic measurements and fuel detection.
One observes a remarkable rise in generation of the next harmonic as well as the demodulation signals versus the pump wave amplitude. A transparent correlation exists concerning these nonlinear signatures and the amount of damages. Preliminary determinations on the coefficient of quadratic nonlinearity have been achieved. The final results during the configuration of parametric emitting antenna are believed being the pretty first on cracked supplies.
Moreover the compactness and benign working features, it absolutely was the enormous flexibility in structure and output features that led on the success of stable-condition lasers during the last 40 several years.
An easy procedure for minimizing the loss that is because of depolarization resulting from thermally induced anxiety birefringence in strong-point out lasers is noted. The method utilizes just one intracavity quarter-wave plate with its rapid or slow axis aligned parallel to the popular plane of polarization, outlined by an intracavity polarizer.
We report new experimental effects about the stage-matching Homes of yellow color HgGa2S4 crystals for harmonic generation of an Nd:YAG laser-pumped KTiOPO4 (KTP) optical parametric oscillator (OPO) and CO2 lasers during the 0.944-ten.5910 μm selection. In addition, we current new Sellmeier equations that give a very good reproduction on the present experimental benefits plus the printed facts points for 2nd-harmonic technology of CO2 laser radiation at nine.
This double rectangle is quantitatively explained and is particularly in line with prior success reported in the literature. Also, numerical simulations are utilized to validate our analytical model over a doubly resonant OPO and exhibit reliable final results. The numerical simulations also show that an best prime-hat temporal profile could supply performances extremely near to those accomplished Along with the optimum double rectangle.
The temperature dependence of refractive indices of optical supplies is characterized During this perform by what we simply call their normalized thermo-optic coefficients. These are identified experimentally by means of interferometric measurements of thermal growth and of variations in optical thickness at a few laser wavelengths as function of temperature. A suitable vectorial formalism placed on these details makes it possible for predicting the thermal evolution on the refractive click here index all around the beneficial selection of transparency.
We current a numerical review for the design of productive MgO:PPLN based mostly pulsed nanosecond optical parametric oscillator (OPO), with input pump pulses of best-hat transverse depth profile, in addition to a double-go pump cavity configuration. Especially, we investigate the result of domain form about the conversion performance. We considered two kinds of area constructions: "best vertical-wall" and "wedge-shaped" domains and our numerical benefits clearly show that at bigger pump pulse energies, the conversion performance saturates, plus the saturated efficiency is almost unbiased on the domain designs.
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stabilize and tune the OPO, from which the solid etalon gave a greater effectiveness. Temperature oscillations from the PPLN crystal
Uncomplicated technique for cutting down the depolarization reduction ensuing from thermally induced birefringence in good-state lasers
We report a broadband optical parametric oscillator (OPO) pumped by a Yb-doped fiber laser method. By employing a 300 μm extensive magnesium-doped periodically poled LiNbO 3 crystal given that the parametric achieve medium and configuring the OPO to be a chirped-pulse oscillator, we acquired mid-infrared emission getting an instantaneous bandwidth masking 3084�?466 nm. This result represents, to the most beneficial of our expertise, the widest instantaneous bandwidth attained from a Yb-fiber-laser-pumped singly resonant OPO, demonstrating the immense likely of chirped-pulse oscillation in scaling the instantaneous bandwidth of extremely-quick OPOs.
Single-stage sub-two hundred fs mid-infrared generation from an optical parametric oscillator synchronously pumped by an erbium fiber laser
three% rms in excess of 12 h in great beam quality. The near-IR signal pulses within the OPO Use a Gaussian pulse length of �?19 ps , measured at 1284 nm. Now we have investigated the temperature tuning traits of the OPO and compared the information Along with the theoretical calculations employing the most recent Sellmeier equations and thermo-optic coefficients to the crystal. To the most beneficial of our expertise, This is actually the initially picosecond OPO based on CSP running at MHz repetition fees.