Photonic Crystal Applications for Laser Diode Technologies Navy STTR FY2005 Sol No.: Navy STTR FY2005 Topic No.: N05-T010 Topic Title: Photonic Crystal Applications for Laser Diode Technologies Proposal No.: N054-010-0141 Firm: nLight Photonics 5408 NE 88th Street, Bldg E Vancouver, Washington 98665 Contact: Paul Crump Phone: (360) 713-5161 Web Site: www.nlightphotonics.com Abstract: The objective of this proposal is to derive a practical, manufacturable route to a high performance two-dimensional photonic crystal broad area high power diode laser, through collaboration between a leading research institution (Caltech) and a leading manufacturer of high power diode lasers (nLight). Initial work would be performed on InP based high power broad area devices, but would be transferable to other wavelengths once proven. Design studies for a high performance 2-D photonic crystal laser will be performed. Initial assessment of prototype lasers will be performed using early Caltech designs on nLight epitaxial growth. The process and tool capability required to deliver high performance photonic crystal lasers in high volumes will be determined, in preparation for phase II. The phase I option would assess initial yield and performance by bonding, testing and assessing multiple 1-cm bars. Benefits: 1) Increase wall-plug efficiency of state of the art broad area InP-based lasers from ~38% to >60%--comparable to current commercial 808-nm lasers 2) Narrow wavelength emission from ~ 6nm to 1-nm FWHM, stable across temperature. 3) Stable single mode optical output at high powers from broad area diode lasers 4) Reduced temperature sensitivity of diode laser performance Return