Accession Number : ADA288203

Title :   Single Frequency Diode Pumped Solid State Lasers.

Descriptive Note : Final scientific and technical rept.,

Corporate Author : CENTER FOR NIGHT VISION AND ELECTRO-OPTICS FORT BELVOIR VA

Personal Author(s) : Alfrey, Anthony J.

PDF Url : ADA288203

Report Date : 01 OCT 1993

Pagination or Media Count : 12

Abstract : Our original project goal was to develop a 1.06 micron, 5 watt single frequency, injection-locked laser. Both CW and Q-switched operation were required and we anticipated that Pound-Drever-Hall stabilization could be used for both tasks. A portion of the master oscillator used for injection locking was needed as a low-power frequency reference for LIDAR work. We expected that we might optimistically be able to obtain about 25% slope efficiency using diode pumping which implied a required pump power of at least 20 watts. Earlier we had built some linear oscillators that consisted of a multiple-bounce optical path within a single block of Nd:YAG. Each bounce point required an individual diode pump and coupling optics. We anticipated that this architecture would not be easily scaled to high powers much above the 5 watt level so we decided to commit to an architecture that might utilize the recently available high power (10 to 20 watts) diode arrays. We decided to couple these arrays to one or more active Nd:YAG elements using optical fibers.

Descriptors :   *FIBER OPTICS, *OPTICAL RADAR, *SOLID STATE LASERS, *INJECTION LASERS, COUPLING(INTERACTION), DIODES, HIGH POWER, LINEAR SYSTEMS, LOW POWER, OSCILLATORS, LASER PUMPING, Q SWITCHING, YTTRIUM ALUMINUM GARNET, YAG LASERS, LASER CAVITIES, RING LASERS, MIRRORS, CONTINUOUS WAVES.

Subject Categories : Lasers and Masers
      Optical Detection and Detectors
      Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE