Results 251 to 260 of about 22,600 (301)

Regenerative amplifier with pulse-on-demand

SPIE Proceedings, 2012
A picosecond regenerative amplifier with pulse on demand operation is demonstrated. The pulse energy is held constant for arbitrary pulse separation by employing an intracavity loss modulator. The loss modulator is controlled by a digital signal processor monitoring the gain of the laser material in real time. The gain is estimated from a measurement
C. Holtz, J. Meier, J. Aus der Au, Max Lederer   +3 more
openaire   +1 more source

ND : YAG regenerative amplifier

Journal of Applied Physics, 1980
The Nd : YAG regenerative amplifier produces short-duration, optical pulses with the stability and pulse width range characteristic of actively mode-locked lasers and the pulse energy characteristic of passively mode-locked lasers. Other important properties, including large amplification and optical pulse storage, have also been achieved.
J. E. Murray, W. H. Lowdermilk
openaire   +1 more source

High-power regenerative amplifier

SPIE Proceedings, 2000
We have been investigating the possibility of ultimate down sizing of the CPA system by improving over all efficiency to convert the green pump energy to the Ti:sapphire wavelength by optimizing the regenerative amplifier. A regenerative amplifier with high gain to achieve small signal and saturated amplification was constructed.
Goichi Ohmae, Takashi Yagi
openaire   +1 more source

A Yb:YAG dual-crystal regenerative amplifier

Optics Communications, 2021
Abstract An Yb:YAG dual-crystal regenerative amplifier was developed. The thermal effects were largely decreased by the dual-crystal configuration and optimized cavity design. The chirped pulse was amplified to 3.5 mJ with excellent energy stability (root mean square ∼ 0.95%) and beam quality ...
Wentao Zhu, Huijun He, Jun Yu, Qingdian Lin, Xiaoyang Guo, Cangtao Zhou, Shuangchen Ruan   +6 more
openaire   +1 more source

Femtosecond Yb:CALGO regenerative amplifier

Advanced Solid-State Lasers Congress, 2013
This study reports the first diode-pumped Yb:CALGO regenerative amplifier. It generates pulses at 1050 nm with up-to-240-μJ energy (before compression), with pulse duration near 350-450 fs and with a 5 nm spectral bandwidth.
Julien Pouysegur, Martin Delaigue, Clemens Hönninger, Eric Mottay, Patrick Georges, Frederic Druon   +5 more
openaire   +1 more source

Nd:YLF mode-locked oscillator and regenerative amplifier

Optics Letters, 1987
Pulses of 37-psec duration are generated by a cw actively mode-locked Nd:YLF oscillator and subsequently amplified to 2.5 mJ in a cw-pumped Nd:YLF regenerative amplifier operating at a repetition rate of 500 Hz. In comparison, the same system refitted with Nd:YAG gain media produces longer pulses (~80 psec) with lower energy (1 mJ).
P, Bado, M, Bouvier, J S, Coe
openaire   +2 more sources

Regenerative Ruby Laser Amplifiers

Journal of the Optical Society of America, 1966
An ideal laser amplifier was previously treated as a three-medium transmission system. It was predicted that for a given length, the gain would rise with negative attenuation (population inversion), reach a maximum, decrease rapidly at first, and then gradually approach zero asymptotically.The theory has been tested experimentally, using ruby at liquid-
H. Jacobs, J. Castro, F. A. Brand, C. LoCascio, S. Weitz, G. Novick   +5 more
openaire   +1 more source

High-power regenerative Nc:phosphate glass amplifier

Applied Optics, 1985
A compact high-power regenerative Nd:phosphate glass amplifier is described which incorporates spatial filtering and full image relay techniques. Output energies up to 1.2 J at a pulse duration of 140 ± 10 psec (FWHM) and 3 J at 900 ± 70 psec (FWHM) are achieved in a smooth nearly flattop beam intensity profile.
E W, Roschger, J E, Balmer
openaire   +2 more sources

42  W femtosecond Yb:Lu_2O_3 regenerative amplifier

Optics Letters, 2016
We report on a femtosecond high-power regenerative amplifier based on Yb:Lu2O3. Exploiting the excellent thermo-mechanical properties of this material, we were able to achieve up to 64.5 W in continuous-wave regime, limited only by the available pump power.
CARACCIOLO, ETIENNE, PIRZIO, FEDERICO, AGNESI, ANTONIANGELO, Kemnitzer, M, Gorjan, M, Guandalini, A, Kienle, F, Aus Der Au, J.   +7 more
openaire   +3 more sources

Optical parametric chirped-pulse amplifier as an alternative to Ti:sapphire regenerative amplifiers

Applied Optics, 2002
We demonstrated a high-pulse energy, femtosecond-pulse source based on optical parametric chirped-pulse amplification. We successfully amplified 1-microm broadband oscillator pulses to 31 mJ and recompressed them to 310-fs pulse duration, at a 10-Hz repetition rate.
Igor, Jovanovic, Brian J, Comaskey, Christopher A, Ebbers, Randal A, Bonner, Deanna M, Pennington, Edward C, Morse   +5 more
openaire   +2 more sources