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Title: Broadly tunable picosecond IR source

Abstract

A picosecond traveling-wave parametric device capable of controlled spectral bandwidth and wavelength in the infrared is reported. Intense 1.064 .mu.m picosecond pulses (1) pass through a 4.5 cm long LiNbO.sub.3 optical parametric oscillator crystal (2) set at its degeneracy angle. A broad band emerges, and a simple grating (3) and mirror (4) arrangement is used to inject a selected narrow-band into a 2 cm long LiNbO.sub.3 optical parametric amplifier crystal (5) along a second pump line. Typical input energies at 1.064 .mu.m along both pump lines are 6-8 mJ for the oscillator and 10 mJ for the amplifier. This yields 1 mJ of tunable output in the range 1.98 to 2.38 .mu.m which when down-converted in a 1 cm long CdSe crystal mixer (6) gives 2 .mu.J of tunable radiation over the 14.8 to 18.5 .mu.m region. The bandwidth and wavelength of both the 2 and 16 .mu.m radiation output are controlled solely by the diffraction grating.

Inventors:
 [1];  [2];  [2]
  1. (Nesconset, NY)
  2. (Los Alamos, NM)
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
864339
Patent Number(s):
4349907
Assignee:
United Stated of America as represented by Department of Energy (Washington, DC) LANL
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
broadly; tunable; picosecond; source; traveling-wave; parametric; device; capable; controlled; spectral; bandwidth; wavelength; infrared; reported; intense; 064; pulses; pass; cm; linbo; optical; oscillator; crystal; set; degeneracy; angle; broad; band; emerges; simple; grating; mirror; arrangement; inject; selected; narrow-band; amplifier; pump; line; typical; input; energies; lines; 6-8; mj; 10; yields; output; range; 98; 38; down-converted; cdse; mixer; radiation; 14; 18; region; 16; solely; diffraction; optical parametric; diffraction grating; parametric oscillator; broad band; device capable; broadly tunable; parametric amplifier; spectral bandwidth; picosecond pulses; controlled spectral; /372/359/

Citation Formats

Campillo, Anthony J., Hyer, Ronald C., and Shapiro, Stanley J. Broadly tunable picosecond IR source. United States: N. p., 1982. Web.
Campillo, Anthony J., Hyer, Ronald C., & Shapiro, Stanley J. Broadly tunable picosecond IR source. United States.
Campillo, Anthony J., Hyer, Ronald C., and Shapiro, Stanley J. Fri . "Broadly tunable picosecond IR source". United States. https://www.osti.gov/servlets/purl/864339.
@article{osti_864339,
title = {Broadly tunable picosecond IR source},
author = {Campillo, Anthony J. and Hyer, Ronald C. and Shapiro, Stanley J.},
abstractNote = {A picosecond traveling-wave parametric device capable of controlled spectral bandwidth and wavelength in the infrared is reported. Intense 1.064 .mu.m picosecond pulses (1) pass through a 4.5 cm long LiNbO.sub.3 optical parametric oscillator crystal (2) set at its degeneracy angle. A broad band emerges, and a simple grating (3) and mirror (4) arrangement is used to inject a selected narrow-band into a 2 cm long LiNbO.sub.3 optical parametric amplifier crystal (5) along a second pump line. Typical input energies at 1.064 .mu.m along both pump lines are 6-8 mJ for the oscillator and 10 mJ for the amplifier. This yields 1 mJ of tunable output in the range 1.98 to 2.38 .mu.m which when down-converted in a 1 cm long CdSe crystal mixer (6) gives 2 .mu.J of tunable radiation over the 14.8 to 18.5 .mu.m region. The bandwidth and wavelength of both the 2 and 16 .mu.m radiation output are controlled solely by the diffraction grating.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

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