Results 31 to 40 of about 154,423 (300)

Low power laser generated ultrasound : signal processing for time domain data acquisition [PDF]

open access: yes, 2001
The use of low power modulated laser diode systems has previously been established as a suitable method for non-destructive laser generation of ultrasound.
Cleary, A.   +6 more
core   +2 more sources

Passive spherical aberration compensation in laser diode side-pumped master oscillator power amplifier laser systems

open access: yesHigh Power Laser Science and Engineering
Based on a 4f system, a 0° reflector and a single laser diode side-pump amplifier, a new amplifier is designed to compensate the spherical aberration of the amplified laser generated by a single laser diode side-pump amplifier and enhance the power of ...
Pengfei Li   +11 more
doaj   +1 more source

Loop Mirror Multi-wavelength Brillouin Fiber Laser Utilizing Semiconductor Optical Amplifier and Fiber Bragg Grating

open access: yesMATEC Web of Conferences, 2017
In this paper, the development of loop mirror multi-wavelength Brillouin fiber laser utilizing semiconductor optical amplifier and fiber Bragg grating is successfully demonstrated. A multi-wavelength BFL structure employs a single mode fiber that acts as
Idris N. A.   +5 more
doaj   +1 more source

Single-frequency upconverted laser generation by phase summation

open access: yesHigh Power Laser Science and Engineering, 2023
The phase summation effect in sum-frequency mixing process is utilized to avoid a nonlinearity obstacle in the power scaling of single-frequency visible or ultraviolet lasers.
Xin Zeng   +9 more
doaj   +1 more source

Generation of tuneable 589nm radiation as a Na guide star source using an optical parametric amplifier [PDF]

open access: yes, 2015
We describe a 5.5W 589nm source based on a passively modelocked Nd:YVO4 laser and a multi-stage Lithium Triborate optical parametric amplifier seeded by a tuneable semiconductor laser.
Duering, M   +2 more
core   +1 more source

Ultrafast ytterbium-doped bulk lasers and laser amplifiers [PDF]

open access: yesApplied Physics B: Lasers and Optics, 1999
We review recent achievements with ultrafast bulk lasers and amplifiers based on Yb:YAG and Yb:glass. Special attention is paid to those aspects of the quasi-three-level nature of these gain media that are important for short-pulse generation. The potential of Yb-doped media for efficient short-pulse generation and amplification is compared to their Nd-
Hönninger, C.   +13 more
openaire   +3 more sources

A high-gain cladded waveguide amplifier on erbium doped thin-film lithium niobate fabricated using photolithography assisted chemo-mechanical etching

open access: yesNanophotonics, 2022
Erbium doped integrated waveguide amplifier and laser prevail in power consumption, footprint, stability and scalability over the counterparts in bulk materials, underpinning the lightwave communication and large-scale sensing.
Liang Youting   +11 more
doaj   +1 more source

A degenerate three-level laser with a parametric amplifier [PDF]

open access: yes, 2006
The aim of this paper is to study the squeezing and statistical properties of the light produced by a degenerate three-level laser whose cavity contains a degenerate parametric amplifier.
Anasari   +18 more
core   +1 more source

Conceptual design of 100 J cryogenically-cooled multi-slab laser for fusion research

open access: yesEPJ Web of Conferences, 2013
We present a comparison of two alternative laser layouts for HiLASE and ELI Beamlines projects. The cryogenically cooled laser is 100 J class with 2 ns pulse length and operates at 10 Hz repetition rate.
Divoky M.   +6 more
doaj   +1 more source

High power metallic halide laser [PDF]

open access: yes, 1982
A laser amplification system is disclosed whereby a metallic halide vapor such as copper chloride is caused to flow through a laser amplifier and a heat exchanger in a closed loop system so that the flow rate is altered to control the temperature rise ...
Pivirotto, T. J.
core   +1 more source

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