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

A method-locked tunable dye laser is developed which happens to be synchronously pumped at substantial repetition charges by the doubled output of the method-locked Nd:YAG laser. The dye laser supplies intensive pulses of 35 psec duration which might be widely tunable, of in close proximity to-rework-restricted bandwidth, As well as in time coincidence While using the pumping pulses.

This method enables the Procedure of commonly tunable optical parametric oscillators2 (OPO) and subsequent variation frequency generators3 creating tunable pulses of significant peak energy. The upper energy on the pump pulse trains has certain Rewards with the operation of a synchronously pumped OPO, e.g., peaceful balance prerequisites, along with the potential to work with massive cavity losses (e.g. steel mirrors) allowing massive tuning ranges with a single list of mirrors and high output-coupling components for pulse shortening.

Research of practical pump laser technologies ideal for ultrafast femtosecond OPOs according to CdSiP two are mentioned, along with the favorable linear and nonlinear optical Attributes, together with special stage-matching attributes of CdSiP two , are introduced applying The latest Sellmeier equations for the fabric. The explained experimental results signify the highest output pulse Power and document typical energy inside the ultrafast picosecond and femtosecond time scales through the six–7 μm spectral variety up to now.

Self-referenced octave-large subharmonic Hole optical parametric oscillator centered at 3 μm and pumped by an Er-fiber laser

We report the implementation of a KTP optical parametric oscillator pumped by a pulsed Ti:sapphire laser. Like signal and idler, it may be continuously tuned from 1.261 by two.532 μm by varying the pump wavelength. Two significant improvements were being accomplished, such as the relationship of your signal and idler tuning ranges as well as large output pulse Power with the sign and idler tuning ... [Demonstrate complete abstract] ranges. The primary improvement was achieved by identifying two certain sets of section-matching angles. The second advancement was realized check here by making use of five sets of resonator mirrors for oscillating possibly signal or idler.

The temperature dependence of refractive indices of optical products is characterised Within this get the job done by what we contact their normalized thermo-optic coefficients. These are typically determined experimentally by means of interferometric measurements of thermal expansion and of improvements in optical thickness at a couple of laser wavelengths as operate of temperature. An acceptable vectorial formalism placed on these data will allow predicting the thermal evolution from the refractive index all over the helpful variety of transparency.

We existing a numerical analyze for the look of economical MgO:PPLN based pulsed nanosecond optical parametric oscillator (OPO), with enter pump pulses of best-hat transverse depth profile, along with a double-pass pump cavity configuration. In particular, we examine the result of area condition on the conversion performance. We viewed as two kinds of domain buildings: "perfect vertical-wall" and "wedge-shaped" domains and our numerical benefits present that at better pump pulse energies, the conversion effectiveness saturates, as well as the saturated effectiveness is nearly unbiased in the domain shapes.

Vibrational spectra of Li-that contains nonlinear crystals as well as their application in THz radiation era are reviewed. Utilizing an example of LiGaS2, the defect effect on spectroscopic characteristics is proven. Substantial-temperature annealing in a suitable environment will allow one to remove extended and stage defects and also to Enhance the transparency. Electricity framework and parameters of most important issue defects such as anion vacancy (F-center) and cation antisite defect GaLi calculated from the very first principles agree effectively Along with the experimental benefits.

The technological know-how of rising mercury thiogallate crystals (HgGa2S4) is improved and high-high-quality bulk samples are developed. The basic optical and thermal Attributes of those crystals are studied. The transmission spectra of mercury thiogallate are calculated and its nonlinear traits including the quadratic susceptibility, tuning curves, along with the optical-harm resistance are established.

... The primary knowledge about the refractive index of orange HGS published by Levine et al. [35] provided only handful of wavelengths during the obvious and in close proximity to-IR equally as an illustration from the feasibility of the crystal for birefringent phase-matching. The refractive indices with the orange section were calculated and tabulated involving 0.

twelve μm and explain all frequency conversion schemes recognized to this point with them along with upcoming possible apps. Keywords: Ternary and quaternary semiconductors, defect chalcopyrites, sound alternatives, nonlinear optical crystals, mid-infrared

A straightforward quantum design agrees properly With all the experimental outcomes and can make it doable to interpret the result with regard to

This is actually the to start with example of a broadband OPO operating over the molecular fingerprint region, and we reveal its likely by conducting broadband Fourier-completely transform spectroscopy utilizing water vapor plus a polystyrene reference typical.