Optical parametric oscillator pumped at ~1 µm with intracavity mid-IR change-frequency generation in OPGaAs

A method-locked tunable dye laser is made and that is synchronously pumped at significant repetition charges through the doubled output of a mode-locked Nd:YAG laser. The dye laser supplies rigorous pulses of 35 psec duration that are widely tunable, of in close proximity to-renovate-restricted bandwidth, As well as in time coincidence Along with the pumping pulses.

Aside from the compactness and benign operating options, it was the enormous flexibility in style and output attributes that led on the good results of sound-condition lasers throughout the last 40 several years.

By employing intracavity dispersion control, in the vicinity of-transform-confined sign pulses of �?a hundred fs duration with easy single-peak spectrum are realized at 1264 nm, similar to an idler wavelength at 6440 nm. To the most effective of our know-how, This is certainly The very first time this kind of useful idler powers in the deep-IR have already been produced from the dispersion-compensated CSP femtosecond OPO at sub-100 MHz repetition fee.

Moreover, the coherent beam blend and divided pulse amplification procedure to even more Raise pulse Electricity are summarized. At the end of this evaluate, we current a detailed overview from the apps of femtosecond pulses including the era of supercontinuum and tunable femtosecond pulses, and many useful purposes. Many Views and investigation Instructions of femtosecond pulses can also be tackled.

The large conversion performance and wide range of radiation wavelength tuning lets to hope that this material might contend with AgGaS2, AgGaSe2, ZnGeP2 and GaSe crystals Regardless of the appreciable problems of huge dimension crystals growth procedure.

The temperature dependence of refractive indices of optical resources is characterized in this operate by what we connect with their normalized thermo-optic coefficients. These are typically determined experimentally by way of interferometric measurements of thermal expansion and of alterations in optical thickness at a few laser wavelengths as operate of temperature. An acceptable vectorial formalism applied to these details will allow predicting the thermal evolution on the refractive index everywhere in the helpful variety of transparency.

This new version has long been updated and revised to includeimportant developments, concepts and systems that haveemerged For the reason that publication of the primary version.

Vibrational spectra of Li-containing nonlinear crystals as well as their application in THz radiation generation are reviewed. Applying click here an illustration of LiGaS2, the defect impact on spectroscopic characteristics is revealed. Superior-temperature annealing in an appropriate environment makes it possible for just one to eliminate prolonged and level defects also to improve the transparency. Electricity construction and parameters of principal stage defects like anion vacancy (F-Heart) and cation antisite defect GaLi calculated from the initial ideas agree very well Together with the experimental final results.

The 3rd harmonic of CO2-laser radiation has been attained by passing the laser beam as a result of two CdGeAs2 crystals in tandem, with the 1st crystal oriented for second-harmonic technology and the next for sum mixing. Working with This method, We have now accomplished a mean external conversion performance of one.

... The main data within the refractive index of orange HGS released by Levine et al. [35] integrated only couple of wavelengths inside the noticeable and in close proximity to-IR just as an illustration of your feasibility of this crystal for birefringent period-matching. The refractive indices with the orange section had been measured and tabulated between 0.

twelve μm and describe all frequency conversion schemes understood so far with them together with future likely applications. Key phrases: Ternary and quaternary semiconductors, defect chalcopyrites, good solutions, nonlinear optical crystals, mid-infrared

In this particular paper we theoretically look into essentially the most successful pump temporal shape for pulsed Procedure of optical parametric oscillators (OPOs). The theoretical Evaluation contains solving the optimal control problem utilizing the level equation formalism. The OPO optimum buildup conduct is derived for virtually any OPO configuration, and we display the exceptional pump pulse shape is often a double rectangle. The very first rectangle is optimized to the buildup course of action, while the second one is optimized to the continual point out, and both of those count differently around the OPO mirror reflectivities plus the readily available pump Electrical power and highest peak electricity.

This can be the initial example of a broadband OPO working throughout the molecular fingerprint area, and we display its opportunity by conducting broadband Fourier-transform spectroscopy using water vapor along with a polystyrene reference normal.