Low Cost, High Power Blue Laser

Period of Performance: 08/31/1995 - 09/01/1997

$745K

Phase 2 SBIR

Recipient Firm

Sdl, Inc.
80 Rose Orchard Way
San Jose, CA 95134
Principal Investigator

Abstract

SDL has successfully demonstrated high-power laser diodes exceeding the output power goals of the Phase I program. Output powers in excess of 4.5 W continous wave (cw) have been obtained from uncoated 100 um wide broad area lasers with threshold current densities of 230 A/cm2. Using the technology developed in the Phase I program SDL has shown an increase in the catastrophic optical damage (COD) level of uncoated laser diodes of more than a factor of 2. Research in Phase II will culminate in the demonstration of a packaged high-power blue laser source emitting 100 mW cw in a diffraction-limited output beam at an emission wavelength of 420 nm. The resulting high-power blue lasers will find use in a wide variety of applications including optical data storage, printing, and medicine. The increased output power, compact size, low cost, and high efficiency will enhance utilization in numerous applications. This program will enable many new blue laser-based commercial and government systems to be developed including high density optical data storage and high resolution printing and imaging. SDL is positioned to rapidly commercialize the technology that is developed. This program will enable many new blue laser-based commercial and government systems to be developed including high density optical data storage and high resolution printing and imaging. SDL is positioned to rapidly commercialize the technology that is developed.