Accession Number : ADA276554


Title :   Methods for SBS Threshold Reduction


Descriptive Note : Final rept.


Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC


Personal Author(s) : Scott, A M ; Whitney, W T ; Duignan, M T


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a276554.pdf


Report Date : 30 Jan 1994


Pagination or Media Count : 58


Abstract : We have investigated methods for reducing the threshold for stimulated Brillouin scattering (SBS) using a frequency-narrowed Cr,Tm,Ho:YAG laser operating at 2.12 micrometers. The SBS medium was carbon disulfide. Single-focus SBS and threshold reduction by using two foci, a loop, and a ring have been demonstrated. Theories for the loop-SBS and the ring-SBS geometries have been developed and compared with experimental results. Backscatter power, energy, and conjugate fidelity data are presented.


Descriptors :   *YAG LASERS , *PHASE , *INFRARED LASERS , *CHROMIUM , *THULIUM , *HOLMIUM , FREQUENCY , PHONONS , CARBON DISULFIDE , LOOPS , RINGS , POWER , REDUCTION , SCATTERING , ENERGY


Subject Categories : Physical Chemistry
      Lasers and Masers
      Optics


Distribution Statement : APPROVED FOR PUBLIC RELEASE