Results 211 to 220 of about 7,235 (262)
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Diode-pumped Nd:YLF regenerative amplifier
Optics Letters, 1992A diode-pumped Nd:YLF regenerative amplifier operating at 1047 nm produces 88-microJ, 11-ps pulses at a 1-kHz repetition frequency. Switching of the 250-MHz seed pulses with a Pockels cell in the half-wave configuration is achieved with a contrast ratio of 20:1.
M, Gifford, K J, Weingarten
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Wavelength tunable alexandrite regenerative amplifier
Applied Optics, 1988We describe a wavelength tunable alexandrite regenerative amplifier which is used to amplify nanosecond slices from a single-frequency cw dye laser or 50-ps pulses emitted by a diode laser to energies in the 10-mJ range. The amplified 5-ns slices generated by the cw-pumped line narrowed dye laser are Fourier transform limited.
D J, Harter, P, Bado
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Regenerative amplifier with pulse-on-demand
SPIE Proceedings, 2012A 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 +3 more
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ND : YAG regenerative amplifier
Journal of Applied Physics, 1980The 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
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High-power regenerative amplifier
SPIE Proceedings, 2000We 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
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Femtosecond Yb:CALGO regenerative amplifier
Advanced Solid-State Lasers Congress, 2013This 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 +5 more
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Regenerative Ruby Laser Amplifiers
Journal of the Optical Society of America, 1966An 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 +5 more
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Nd:YLF mode-locked oscillator and regenerative amplifier
Optics Letters, 1987Pulses 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
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High-power regenerative Nc:phosphate glass amplifier
Applied Optics, 1985A 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
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Transistor Pulse Regenerative Amplifiers
Bell System Technical Journal, 1956A pulse regenerative amplifier is a bistate circuit which introduces gain and pulse reshaping in a pulse transmission or digital data processing system. Frequently it is used also to retime the pulses which constitute the flow of information in such systems.
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