Research and Development of Advanced Design Injection Laser Diodes.
Abstract
High peak power, pulsed GaInAsP/InP Large Optical Cavity (LOC) injection lasers emitting in the 1.0 to 1.3 micron region have been developed and studied under this program. This final report describes efforts directed toward the optimization of these devices and, in particular, concentrates on the following points: (1) Materials and structure development required to extend wavelength and peak power capability. (2) Process development connected with the fabrication of high power stripe geometry long wavelength lasers. (3) Package development and fiber coupling techniques for these devices. Excellent peak power performance, on the order of 4 mW per micron of junction length, was obtained for quaternary LOC laser diodes at a peak wavelength of 1.16 microns. In addition, greater than 25% coupling efficiency was demonstrated for 3 mil stripe quaternary LOC lasers coupled to 55 micron core graded index fiber. Peak optical power in excess of 75 mW was routinely obtained from the fiber pigtail. These devices are extremely well suited as sources for long haul, low bandwidth digital fiber optic systems where their high peak power capability can compensate for fiber darkening in high level radiation environments. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1980
- Accession Number
- ADA097754
Entities
People
- Frank D. Speer
- Thomas E. Stockton