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Title: Mode-locked solid state lasers using diode laser excitation

Abstract

A mode-locked laser employs a coupled-polarization scheme for efficient longitudinal pumping by reshaped laser diode bars. One or more dielectric polarizers are configured to reflect a pumping wavelength having a first polarization and to reflect a lasing wavelength having a second polarization. An asymmetric cavity provides relatively large beam spot sizes in gain medium to permit efficient coupling to a volume pumped by a laser diode bar. The cavity can include a collimation region with a controlled beam spot size for insertion of a saturable absorber and dispersion components. Beam spot size is selected to provide stable mode locking based on Kerr lensing. Pulse durations of less than 100 fs can be achieved in Yb:KGW.

Inventors:
 [1]
  1. Boston, MA
Issue Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1039883
Patent Number(s):
8130800
Application Number:
11/724,625
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Holtom, Gary R. Mode-locked solid state lasers using diode laser excitation. United States: N. p., 2012. Web.
Holtom, Gary R. Mode-locked solid state lasers using diode laser excitation. United States.
Holtom, Gary R. Tue . "Mode-locked solid state lasers using diode laser excitation". United States. https://www.osti.gov/servlets/purl/1039883.
@article{osti_1039883,
title = {Mode-locked solid state lasers using diode laser excitation},
author = {Holtom, Gary R},
abstractNote = {A mode-locked laser employs a coupled-polarization scheme for efficient longitudinal pumping by reshaped laser diode bars. One or more dielectric polarizers are configured to reflect a pumping wavelength having a first polarization and to reflect a lasing wavelength having a second polarization. An asymmetric cavity provides relatively large beam spot sizes in gain medium to permit efficient coupling to a volume pumped by a laser diode bar. The cavity can include a collimation region with a controlled beam spot size for insertion of a saturable absorber and dispersion components. Beam spot size is selected to provide stable mode locking based on Kerr lensing. Pulse durations of less than 100 fs can be achieved in Yb:KGW.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {3}
}

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Works referenced in this record:

Optimization of fiber-coupled laser-diode end-pumped lasers: influence of pump-beam quality
journal, January 1996


Structures for additive pulse mode locking
journal, January 1991


Mode locking in solitary lasers
journal, January 1991


Diode-pumped Kerr-lens mode-locked Yb:KY(WO_4)_2 laser
journal, January 2001


Polarization beam splitters for pumping of Fii-center lasers
journal, January 1979


60-W average power in 810-fs pulses from a thin-disk Yb:YAG laser
journal, January 2003


Yb^3+-doped YVO_4 crystal for efficient Kerr-lens mode locking in solid-state lasers
journal, January 2005


131 W 220 fs fiber laser system
journal, January 2005


Diode-pumped femtosecond Yb:KGd(WO_4)_2 laser with 11-W average power
journal, January 2000


Multielement stable resonators containing a variable lens
journal, January 1987


Thermal lensing in diode-pumped ytterbium Lasers-Part II: evaluation of quantum efficiencies and thermo-optic coefficients
journal, September 2004