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Mesa-stripe Pb /SUB 1-X/ Sn /SUB X/ Se tunable diode lasers

Journal Article · · IEEE J. Quant. Electron.; (United States)
A mesa-stripe configuration for diffused junction Pb /SUB 1-X/ Sn /SUB X-/ Se lasers has been developed. The new lasers exhibit substantially improved performance over nonstripe devices, including CW operating temperatures up to 118 K, overall tuning ranges as wide as 444 cm/sup -1/, and single-mode tuning ranges typically 1-3 cm/sup -1/ for current tuning and as wide as 5.5 cm/sup -1/ for temperature tuning. Surface leakage currents are shown to have a major effect on the operating characteristics of these and other Pb-salt devices. Results provide evidence for high internal quantum efficiencies and indicate that free carrier absorption is an important factor limiting power output in Pb-salt lasers. Observations of spectral mode behavior as a function of bias current are consistent with Zee's gain saturation model.
Research Organization:
Butler Research and Engineering, Inc., Lexington, MA
OSTI ID:
5051224
Journal Information:
IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. 19:10; ISSN IEJQA
Country of Publication:
United States
Language:
English