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We report a femtosecond optical parametric oscillator based on two PPLN crystals pumped by Ti:sapphire laser with dual synchronization for intracavity signal amplification across the tuning range 1420–1580 nm.
We report a compact, efficient, 1.5 mJ, 450 MHz, mid-IR picosecond OPO based on CdSiP2, synchronously-pumped at 1064 nm, covering the technologically important wavelength range of 6091–6577 nm for surgical applications.
We report a high-energy picosecond optical-parametric-generator tunable over 6153–6732 nm in the mid-infrared, 1264–1286 nm in near-infrared, providing ∼600 μJ of output energy over entire signal-tuning-range, >25μJ of idler energy over 55% of the idler-tuning-range.
We demonstrate a practical technique for pre-oscillation threshold reduction, output power enhancement, and high frequency pulse train engineering in synchronously-pumped optical parametric oscillators based on synchronized retro-reflected pumping.
We report a novel architecture for cw OPOs based on antiresonant ring interferometric cavity coupling, providing two pairs of signal/idler waves with independent tuning and arbitrarily close wavelength separation.
We demonstrate a tunable picosecond source providing up to 3.5 W over 752–860 nm, with a power stability of 1.6% rms over 14 hours using intracavity frequency-doubling in optical-parametric-oscillator synchronously pumped by a Yb-fiber laser.
In the present article, the thermal distribution inside the gain medium of a passively Q-switched microchip laser is modeled and simulated for actual practical values associated with an available microchip laser constructed in our laboratory. The effects of the non-uniform heat distribution on the spectral properties of the output laser beam have been investigated and simulated with the variation...
The titanium-doped sapphire (Ti:Al2O3) laser has been established as the workhorse tunable solid-state laser for the near-infrared spectral range, for continuous-wave (cw) as well as ultrafast timescales, benefiting numerous applications. Ti:sapphire laser have relied mainly on argon ion lasers and frequency-doubled Nd-based green lasers as the pump source [1]. Other possible pumps include optically-pumped-semiconductor-lasers...
Since the demonstration of laser, an important parameter characterizing the performance of any optical oscillator has been the extractable output power. The conventional method relies on the use of a partially transmitting mirror as an output coupler. However, attainment of maximum output power requires experimental evaluation of different mirror transmissions. Moreover, variations in operating conditions,...
Bismuth triborate, BiB3O6 (BIBO), is a nonlinear material with unique optical properties for frequency conversion in the UV, visible, and near-infrared [1]. However, to our knowledge, BIBO has not been previously deployed in ultrafast OPOs pumped directly by Ti:sapphire. For optical parametric generation pumped at 800 nm, type (e→o+o) phase-matching with wide tuning in optical xz-plane is available,...
High-power, continuous-wave (cw) mid-infrared optical parametric oscillators (OPOs) are of prime interest for variety of applications including spectroscopy and trace gas detection, requiring wide tunability and narrow linewidth. Singly-resonant OPOs (SROs) based on quasi-phase-matched(QPM) nonlinear materials such as MgO:PPLN represent the most viable configuration for such applications, because...
Independently tunable, coherent dual-wavelength light sources are of great interest for applications including spectroscopy, short- and long-wavelength generation using nonlinear frequency conversion and many more. While optical parametric oscillators (OPOs) are now established as versatile and practical sources of widely tunable radiation, the generation of a signal-idler pair of truly arbitrary...
We report parametric generation of near- and mid-infrared picosecond pulses at 100 kHz in CdSiP2 pumped at 1.064 µm, providing 154 mW of idler at 6.204 µm and 1.16 W of signal at 1.282 µm.
We report parametric generation of near- and mid-infrared picosecond pulses at 100 kHz in CdSiP2 pumped at 1.064 μm, providing 154 mW of idler at 6.204 μm and 1.16 W of signal at 1.282 μm.
We demonstrate, for the first time, successful deployment of an antiresonant ring interferometer within a ring optical resonator for absolute optimization of output power, extracting >5 W of signal from a picosecond optical parametric oscillator.
We report a continuous-wave singly-resonant optical parametric oscillator based on MgO:sPPLT pumped by a Yb-fiber-laser, generating up to 5.5W mid-infrared idler power tunable over 430 nm, with peak-peak power stability of 9.7% over 3 hours.
We report a femtosecond optical parametric oscillator based on BiB3O6 pumped directly by a Kerr-lens-mode-locked Ti:sapphire laser, providing broad, continuous, and rapid tuning in the near-infrared using cavity delay detuning with self-compressed signal pulses.
Using a continuous-wave doubly-resonant optical parametric oscillator, we demonstrate, for the first time, the successful deployment of a phase modulator in combination with an antiresonant ring interferometer for generation of mode-locked pulses.
We report a novel generic design for cw singly-resonant-parametric-oscillators(SROs) based on two crystals, providing two signal waves with arbitrary tuning from the same cavity. Using this source we generate two distinct wavelengths with frequency difference 0.556THz.
We present a stable, high-power, fiber-laser-pumped, continuous-wave (cw), singly resonant optical parametric oscillator (SRO) for the mid-infrared in an output-coupled (OC) configuration, providing 17.5 W of total output power at 61% extraction efficiency. Using a single-frequency, cw Yb fiber laser at 1064 nm and a 50-mm-long MgO:PPLN crystal, through optimization of signal output coupling we generate...
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