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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 (United States)
OSTI Identifier:
864339
Patent Number(s):
4349907
Assignee:
United Stated of America as represented by Department of Energy (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
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}
}