Ion Doped Quantum Well Lasers.
Final rept. 30 Sep 93-29 Sep 95,
SPIRE CORP BEDFORD MA
Pagination or Media Count:
The objective of this research was to fabricate erbium doped diode lasers which were expected to be temperature independent, frequency stable sources of 1538 nm light optical communications. New metalorganic sources of erbium were developed that enabled metalorganic chemical vapor deposition MOCVD of ErGaAs and AlGaAs structures with low levels of carbon and oxygen. Substitutional doping levels to over 10exp 20 per cubic centimeter were demonstrated with good photo- and cathode-luminescence properties. LEDs and diode laser structures were fabricated with erbium placed a so as to be pumped directly by electron hole pair recombination, and b by optical absorption at 980um. However, lasing at 1538nm was not observed in either case. The program did result in two commercial products the erbium metalorganic source chemicals, and laser diode arrays with 980nm emission which can be used to pump erbium glass solid state lasers.
- Solid State Physics