Accession Number : ADA332105

Title :   High-Power CW Diode-Laser-Array-Pumped Solid-State Lasers and Efficient Non-Linear-Optical Frequency Conversion.

Descriptive Note : Final rept. 15 Feb 94-15 May 97,

Corporate Author : STANFORD UNIV CA EDWARD L GINZTON LAB OF PHYSICS

Personal Author(s) : Tulloch, W. ; Rutherford, T. ; Route, R. K. ; Byer, Robert L.

PDF Url : ADA332105

Report Date : 22 OCT 1997

Pagination or Media Count : 48

Abstract : The goals of this program were: development of high-power, cw diode-laser-array-pumped, Nd:YAG lasers, and efficient nonlinear frequency conversion of their output. Two minislab laser heads constructed as a single high power dual-head oscillator (96W, multi-mode) were operated separately to support Q-switched and cw nonlinear frequency conversion studies and single-frequency injection-locking studies and the start of cw amplifier research. A cw singly resonant optical parametric oscillator (SRO) utilizing bulk periodically poled LiNbO3 (PPLN) for tunable mid-IR radiation using the Q-switched laser as the pump was developed, and SHG output at 532 nm was increased from 800 mW average power (15 KHz rep rate) to 1300 mW average power (8.4 KHz rep rate). Coherent laser radar with high-power, high-coherence sources was pursued through a highly-coherent master oscillator cw power amplifier approach. We operated one laser head as a (1OW TEM00) oscillator and the second laser head as a triple-pass amplifier achieving 26 W TEM00 output. More extensive experiments on cw diode-laser pumped laser amplifiers for high-power, high-coherence sources were carried out to test the ability of theoretical modeling to predict amplifier output power.

Descriptors :   *YAG LASERS, *LASER AMPLIFIERS, *NEODYMIUM LASERS, OSCILLATORS, Q SWITCHING, INJECTION LASERS, OPTICAL EQUIPMENT, FREQUENCY CONVERSION, LITHIUM NIOBATES, OPTICAL PUMPING, PARAMETRIC AMPLIFIERS, DIODE LASERS.

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE