Accession Number : AD0890525

Title :   Shock Excited FTIR Q-Switch.

Descriptive Note : Progress rept. Jul 69-Jul 71,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Erickson,Allen M.

Report Date : 09 AUG 1971

Pagination or Media Count : 19

Abstract : A new high speed high power laser Q-Switch is described together with test results in a 100 megawatt ruby laser cavity. A frustrated total internal reflector (FTIR) is pulse driven by mechanical shockwave to produce fast switch action with good depth of modulation and low cavity insertion loss. Multiple Q-switching has been achieved at 200k p.p.s. during the laser pump cycle producing better than 80 Q-switched pulses in a half millisecond. Also described is a double pulse application to interference type holography. (Author)

Descriptors :   (*LASERS, OPTICAL EQUIPMENT COMPONENTS), LIGHT PULSES, MODULATORS, EXPERIMENTAL DESIGN

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE