Tuning characteristics of InAsSb continuous-wave lasers

Year: 2002

Authors: Sherstnev V., Krier A., Popov A., Werle P.

Autors Affiliation: Physics Department, Lancaster University, Lancaster LA1 4YB, United Kingdom; AG Integrierte Optoelectronik, Universitat Kaiserslautern, D-67653 Kaiserslautern, Germany; Fraunhofer Institut IFU, Kreuzeckbahnstr. 19, 82467 Garmisch-Partenkirchen, Germany

Abstract: We present a detailed analysis of the tuning characteristics of InAsSb continuous-wave (cw) single-frequency lasers emitting at 3.3 µm (3050 cm -1). The lasers demonstrate a tuning range of -7.5 cm-1 by changing the current and -3.5 cm-1 by changing the heat sink temperature without mode hopping. The tuning rates are of -0.015 to -0.089 cm-1/mA and -0.11 to 0.27 cm-1/K. The laser tunes to the blue side both with increasing injection current and heat sink temperature. The extended tuning is attributed to the carrier heating effect in the cw operation and the band-filling effect in the presence of strong losses.

Journal/Review: APPLIED PHYSICS LETTERS

Volume: 80 (20)      Pages from: 3676  to: 3678

KeyWords: Band filling effects; Carrier heating; Continuous waves; CW operation; Heat sink temperature; Injection currents; Mode-hopping; Single-frequency lasers; Tuning ranges; Tuning rates, Heat sinks; Indium antimonides, Continuous wave lasers
DOI: 10.1063/1.1478147

Citations: 2
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