.. [Demonstrate total abstract] parametric oscillator. The two independently focused beams ended up designed to overlap In the crystal. The concentrating parameters of the two beams were with regards to the exact same. The concentrating purpose formulated by Boyd and Kleinman for tightly focused beams was prolonged to periodically poled crystals so that you can fit the temperature-tuning curve. A 0.sixty six%/W efficiency was obtained for the primary difference frequency mixing system.
Outcomes of thermal conductivity measurements are claimed for a number of of the more a short while ago created nonlinear optical crystals. New or significantly revised values of thermal conductivity were obtained in 6 supplies. Notable thermal conductivities measured had been All those for AgGaS2 [0.014 W/(cm K) and 0.
Besides the compactness and benign running options, it was the big versatility in design and style and output features that led to the good results of sound-condition lasers over the past forty decades.
A straightforward system for reducing the loss that is because of depolarization ensuing from thermally induced anxiety birefringence in reliable-state lasers is documented. The technique utilizes a single intracavity quarter-wave plate with its quickly or sluggish axis aligned parallel to the preferred aircraft of polarization, outlined by an intracavity polarizer.
We report new experimental success about the phase-matching properties of yellow coloration HgGa2S4 crystals for harmonic technology of the Nd:YAG laser-pumped KTiOPO4 (KTP) optical parametric oscillator (OPO) and CO2 lasers while in the 0.944-10.5910 μm range. Also, we current new Sellmeier equations that provide a fantastic reproduction of the existing experimental benefits as well as the revealed details points for next-harmonic era of CO2 laser radiation at nine.
This double rectangle is quantitatively explained which is consistent with former final results reported while in the literature. Also, numerical simulations are used to validate our analytical product on the doubly resonant OPO and clearly show steady benefits. The numerical simulations also demonstrate that an exceptional top rated-hat temporal profile could give performances incredibly near the ones accomplished Using the ideal double rectangle.
Ultrafast femtosecond manner-locked fiber laser plays an indispensable role in healthcare imaging, House ranging, ophthalmology, terahertz spectroscopy, content micromachining, and so forth. It’s don't just a significant Instrument for people to examine the entire world, but also a pillar discipline of laser technologies. This critique present the technology of femtosecond pulses in ultrafast method-locked fiber lasers using Energetic, passive, hybrid method-locking approaches, the emphasis is offered to passively manner-locked fiber lasers. With regards to the optimization of femtosecond pulses, we introduce the external compression strategy to obtain shorter pulse width, chirped pulse amplification strategy to boost pulse Electricity and obtain substantial energy femtosecond pulses at the practical band.
We current a numerical study for the design of efficient MgO:PPLN based pulsed nanosecond optical parametric oscillator (OPO), with enter pump pulses of prime-hat transverse intensity profile, in addition to a double-pass pump cavity configuration. Specifically, we investigate the outcome of area condition about the conversion effectiveness. We deemed two kinds of domain constructions: "best vertical-wall" and "wedge-formed" domains and our numerical results present that at higher pump pulse energies, the conversion efficiency saturates, along with the saturated efficiency is almost impartial in the domain shapes.
Additionally, we done a numerical simulation of chirped-pulse OPOs (CPOPOs) and discovered which the spectral profile of the output from a CPOPO was relevant to the two the parametric achieve profile with the nonlinear crystal plus the intra-cavity significant-buy dispersion.
The technological innovation of developing mercury thiogallate crystals (HgGa2S4) is enhanced and substantial-top quality bulk samples are created. The essential optical and thermal Attributes of such crystals are researched. The transmission spectra of mercury thiogallate are measured and its nonlinear traits including the quadratic susceptibility, tuning curves, and also the optical-damage resistance may also be established.
... The main info to the refractive index of orange HGS printed by Levine et al. [35] provided only few wavelengths during the noticeable and in close proximity to-IR equally as a demonstration in the feasibility of the crystal for birefringent period-matching. The refractive indices for the orange phase have been calculated and tabulated involving 0.
We report a broadband optical parametric oscillator (OPO) pumped by a Yb-doped fiber laser program. By employing a three hundred μm prolonged magnesium-doped periodically poled LiNbO 3 crystal as being the parametric acquire medium and configuring the OPO to be a chirped-pulse oscillator, we attained mid-infrared emission having an instantaneous bandwidth covering 3084�?466 nm. This end result represents, to the most effective of our understanding, the widest instantaneous bandwidth acquired from the Yb-fiber-laser-pumped singly resonant OPO, demonstrating the enormous likely of chirped-pulse oscillation in scaling the instantaneous bandwidth of ultra-rapidly OPOs.
Mid-IR 2nd-purchase NLO crystal is indispensable inside the frequency conversion applications while in the mid-IR region. As opposed with DUV and UV/Vis/close to-IR NLO crystals, useful mid-IR NLO crystals are somewhat exceptional, and plenty of here of these are still for the stage of laboratory investigation. This chapter reviews the recent progress about the mid-IR NLO crystals, which mainly consists of developing the classical mid-IR NLO crystals into massive significant-good quality ones or into quasi-phase-matching structures which have been appropriate for the laser equipment by different advancement procedures and Discovering new potential mid-IR NLO crystals by introducing new layout and synthesis approaches.
three% rms more than twelve h in great beam excellent. The close to-IR sign pulses in the OPO Use a Gaussian pulse duration of �?19 ps , measured at 1284 nm. Now we have investigated the temperature tuning qualities with the OPO and in contrast the information Using the theoretical calculations employing The newest Sellmeier equations and thermo-optic coefficients for your crystal. To the ideal of our knowledge, This is actually the initially picosecond OPO based on CSP working at MHz repetition premiums.