An All-Solid-State Chirped Source for Coherent Optical Radar.

Abstract

A low-noise, high-power, single-frequency, solid-state laser harmonically converted to the green is required to pump a single- frequency, singly-resonant, chirped, optical parametric oscillator. As work toward this new frequency agile source we have built and injection locked an 18 watt Nd:YAG slave laser with a 40 mW master laser to produce single frequency operation, generated 6.5 watts of 532 nm radiation at 36% efficiency by resonant second harmonic generation, and measured spectral and spatial mode characteristics of this laser. Toward an all-solid-state version of this laser we have designed a diode-laser-pumped Nd:YAG laser. All subsystems of this laser have been built and tested and the final construction of the laser is currently underway. In addition, we have built both a pulsed singly resonant optical parametric oscillator, and a low threshold cw doubly resonant optical parametric oscillator that operated at 80% conversion efficiency in a single axial mode.

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Document Details

Document Type
Technical Report
Publication Date
Mar 15, 1992
Accession Number
ADA299821

Entities

People

  • Robert L. Byer

Organizations

  • Stanford University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Conversion
  • Efficiency
  • Electromagnetic Radiation
  • Frequency
  • Laser Applications
  • Laser Diodes
  • Laser Radar
  • Lasers
  • Light (Electromagnetic Radiation)
  • Low Noise
  • Oscillators
  • Radiation
  • Second Harmonic Generation
  • Solid State Lasers
  • Yag Lasers

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy