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Friday, May 15, 2020 | History

2 edition of Active passive mode locked cavity dumped, Nd:YAG pulsed laser with variable pulse duration found in the catalog.

Active passive mode locked cavity dumped, Nd:YAG pulsed laser with variable pulse duration

Active passive mode locked cavity dumped, Nd:YAG pulsed laser with variable pulse duration

  • 225 Want to read
  • 12 Currently reading

Published by Bhabha Atomic Research Centre in Mumbai .
Written in English

    Subjects:
  • Laser plasmas.,
  • Nd-YAG lasers.

  • Edition Notes

    Statementby S. Chaurasia ... [et al.].
    SeriesBARC external ;, BARC/2004/E/012
    ContributionsChaurasia, S., Bhabha Atomic Research Centre.
    Classifications
    LC ClassificationsMicrofiche 2005/60213 (Q)
    The Physical Object
    FormatMicroform
    Pagination50 p.
    Number of Pages50
    ID Numbers
    Open LibraryOL3443151M
    LC Control Number2005318222

    PROCEEDINGS VOLUME Laser Radar Technology and Applications III. Editor(s): Gary W Applications of the HI-CLASS (high-performance CO2 laser radar surveillance sensor) laser system for active imaging of space objects Author(s): Thomas C. Bryan; Michael L. Book Show Abstract Low-cost high-resolution video-rate imaging optical radar. K.J. Snell, N. McCarthy, M. Piché: Single Transverse Mode Oscillation from an unstable Resonator Nd:YAG Laser Using a Variable Reflectivity Mirror, Opt. .

    A view of in-house developed W average power pulsed Nd:YAG laser XV ANNUAL REPORT EXECUTIVE SUMMARY ceramic reflector and single flash lamp pump chamber has been developed at RRCAT. The laser provides maximum pulse energy of up to 12 J in 10 ms pulse duration having laser beam diameter of 4 mm. Full text of "Laser induced damage in optical materials " See other formats.

    Once the optimal laser beam parameters were set, the delay of the Gaussian σ − pulse was measured as a function of the pulse duration and laser beam intensity. The measured group velocities are in the range from km/s to 23 km/s, while the fractional time delay is in the interval from % to 20 % [3]. see citations list. download Report. Comments. Transcription. see citations list.


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Active passive mode locked cavity dumped, Nd:YAG pulsed laser with variable pulse duration Download PDF EPUB FB2

A flashlamp-pumped, pulsed, Nd:YAG laser was mode-locked by the addition of a nonlinear external coupled cavity. The nonlinear element used was a second harmonic generating crystal. Pulse. Spectral and temporal measurements undertaken on a single picosecond laser pulse from a flash lamp pumped, cavity dumped, active/passive mode-locked Nd:YAG laser are presented in this paper.

An end pumped Nd:YAP laser at nm is actively mode locked and passively Q-switched. Pumping was done with a pulsed high power laser diode with maximum power W. The developed approach utilizes active-passive mode-locked and negative feedback controlled oscillator that provides generation of stable, closed to transform limited pulses with pulse duration of 25 ps (with Nd:YAG) and 16 ps (with Nd:YLF).Author: Nikita G.

Mikheev, Vyacheslav B. Morozov, Andrei N. Olenin, Vladimir G. Tunkin, Dmitrii V. Yakovlev. The pulses are amplified at a repetition rate of 1 kHz, using the frequency-doubled output of a cavity-dumped, acousto-optically mode-locked, Q-switched, cw pumped Nd:YAG laser.

Figure 1: Schematic setup of an actively Q-switched laser. The most common type is the actively Q-switched solid-state bulk -state gain media have a good energy storage capability, and bulk lasers allow for large mode areas (thus for higher pulse energies and peak powers) and shorter laser resonators (e.g.

compared with fiber lasers).The laser resonator contains an active Q switch. Active nondestructive assay of nuclear materials (STII) Active passive mode locked cavity dumped Nd:YAG Pulsed Laser with variable pulse duration (STII) ACTS newsletter (STII) Addressing amplified spontaneous emission in lasers (STII) An Adrenocorticolytic agent alters thyro-gonadal systeme in the pigeon, Columba Livia (NAST).

Analyze and design passive and active fiber optics: fiber amplifiers and lasers (continuous-wave, Q-switched, mode-locked, multi-stage, CPA, ) single-mode and multimode fibers, double-clad fibers, multi-core fibers, tapered fibers, fiber couplers; telecom systems; RP Fiber Power is a must-have for anyone seriously working with fiber devices.

The pulse energy can be substantially higher than for a cavity-dumped mode-locked laser, since the latter would not allow pumping the gain medium for a long time without energy extraction by a circulating pulse.

A regenerative amplifier, other than a mode-locked laser, even allows for pulsed pumping – using a Q-switched pump source, for : R. Paschotta. A Q-switched laser is a type of (or modification to) a pulsed laser which shortens it output pulse width, boosts peak output power, and improves the consistency of the output from pulse to pulse.

However, there will likely be a reduction in total energy in the output when a laser is operated in Q-switch mode. Chaitanya Kumar Suddapalli received Ph.D. degree in photonics with “Excellent Cum Laude with Honours” from ICFO-The Institute of Photonic Sciences, Barcelona, Spain, infor his thesis on high-power, fiber-laser-pumped optical parametric oscillators from the visible to mid-infrared.

One of the tables of the chapter gives some recent representative psec generators along with their tuning ranges, pulse energies and powers, pulse repetition rates, and average powers.

In addition to the laser sources discussed, pulsed and modelocked parametric oscillators pumped by mode-locked lasers have also produced psec : V.N.

Smiley. KEYWORDS: Microscopes, Beam splitters, Metals, Laser processing, Laser ablation, Optoelectronics, Pulse shaping, Microfabrication, Neodymium lasers, Pulsed laser operation Read Abstract + A novel approach to restrain the formation of the burr during nanosecond laser ablation is reported in this paper.

KEYWORDS: Crystals, Laser crystals, Phase matching, Birefringence, Four wave mixing, Laser development, Mirrors, Polarization Read Abstract + Parametric four-wave mixing of frequency components in a crystalline Raman laser allowed generation of a collimated beam of not only Stokes, but also anti-Stokes components of the Raman radiation.

A mechanism is required to phase-lock all of the individual modes in the laser cavity to each other, and to do it in a way that minimizes the pulse duration (DiDomenico []).

The simplest mechanism that can be implemented is a high-speed shutter that synchronously opens and closes with a pulse circulating around the laser : Clifford R. Pollock. 50 W thin-disk laser with variable pulse duration.

High power nm VCSEL arrays for pumping of compact pulsed high energy Nd:YAG lasers operating at nm and nm for blue and UV light generation. Design of micro-second pulsed laser mode for ophthalmological CW self-raman laser.

The author's monograph Solid-State Laser Engineering has become the most-used reference book in this area. The present graduate text on solid-state lasers takes advantage of this rich source by focusing on the needs at the graduate level and those who need an introduction.

Time-resolved measurements are widely used in fluores-cence spectroscopy,particularly for studies of biological macromolecules and increasingly for cellular imaging.

Time-resolvedFile Size: 4MB. High power tube solid-state laser with zigzag propagation of pump and laser beam Michael Savich Proc. SPIESolid State Lasers XXIV: Technology and Devices, (20 February ); doi: / You can write a book review and share your experiences.

Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them.

This chapter is a review of both ultrafast and nano-sciences, and intends to bridge the gap between these two topics. For this purpose, the chapter illustrates the most widely used and most promising experimental techniques borrowed from ultrafast science and Cited by: 4.The pump is usually either a mode-locked argon laser or a frequency-doubled mode-locked YAG:Nd3+ laser.

The mode-locked regime of the pump laser is most often obtained by modulating its cavity losses with an acousto-optical modulator set at frequency c/2L1 (L1 is the length of the pump cavity).

The dye laser will go into the mode-locked regime.A cavity-dumped mode-locked laser is a laser that uses a specific technology for producing high-energy ultrashort laser pulses by decreasing the pulse repetition rate. The laser output mirror is replaced by an optical selector consisting of a couple of spherical mirrors and an acousto- or electrooptical deflector, which extracts a pulse from Cited by: 3.