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View article: Blue-pumped photorefractive optical transient detection with low-power femtosecond laser pulses
Blue-pumped photorefractive optical transient detection with low-power femtosecond laser pulses Open
We demonstrate optical transient detection (OTD) via photorefractive two-wave mixing using visible femtosecond pulses. This technique utilizes a nonlinear crystal to perform OTD directly in the blue spectrum by employing second-harmonic ge…
View article: Performance studies on group-velocity-matched femtosecond optical parametric generation
Performance studies on group-velocity-matched femtosecond optical parametric generation Open
We present a comparative study and detailed characterization of high-power femtosecond optical parametric generation (OPG) at 10 MHz repetition rate in the near and mid-infrared by exploiting near-zero group-velocity-mismatch (GVM) in the …
View article: Efficient femtosecond optical parametric generation in group-velocity-matched MgO:PPLN at 10 MHz
Efficient femtosecond optical parametric generation in group-velocity-matched MgO:PPLN at 10 MHz Open
We report on efficient single-pass optical parametric generation (OPG) of broadband femtosecond pulses in the mid-infrared at 10 MHz by exploiting group-velocity-matched interaction in a 42-mm-long MgO:PPLN crystal. Using a microchip-start…
View article: Up-converted photorefractive optical transient detection with femtosecond laser pulses
Up-converted photorefractive optical transient detection with femtosecond laser pulses Open
We report on experimental demonstration of optical transient detection (OTD) based on photorefractive two-wave mixing of femtosecond pulses. The demonstrated technique also combines nonlinear-crystal-based OTD with up-conversion from infra…
View article: High-power continuous-wave mid-infrared difference-frequency generationin the presence of thermal effects
High-power continuous-wave mid-infrared difference-frequency generationin the presence of thermal effects Open
We report performance studies of high-power, continuous-wave (cw), mid-infrared (mid-IR) difference-frequency generation (DFG) in MgO:PPLN at 2262 nm based on a narrowband Yb-fiber laser as pump and a Tm-fiber laser as signal source. Using…
View article: Green-pumped continuous-wave parametric oscillator based onfanout–grating MgO:PPLN
Green-pumped continuous-wave parametric oscillator based onfanout–grating MgO:PPLN Open
We report the first green-pumped continuous-wave (cw) optical parametric oscillator (OPO) based on MgO:PPLN in a fanout grating design. Pumped by a single-frequency cw laser at 532 nm, the OPO provides tunable radiation across 813–1032 nm …
View article: Continuous-wave green-pumped optical parametric oscillator based on fanout MgO:PPLN
Continuous-wave green-pumped optical parametric oscillator based on fanout MgO:PPLN Open
We report a green-pumped continuous-wave OPO using a fanout-grating MgO:PPLN, tunable across 813-1032 nm (signal) and 1098-1539 nm (idler) with >30% extraction efficiency in excellent beam-quality and power stability better than 3% rms ove…
View article: Widely tunable room-temperature continuous-wave optical parametric oscillator based on periodically-poled KTiOPO<sub>4</sub>
Widely tunable room-temperature continuous-wave optical parametric oscillator based on periodically-poled KTiOPO<sub>4</sub> Open
We report the first realization of widely tunable continuous-wave (cw) optical parametric oscillator (OPO) based on periodically-poled KTiOPO4 (PPKTP) at room temperature. By exploiting fan-out grating design in a 30-mm PPKTP crystal, and …