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Fundamental line broadening of single-mode (GaAl)As diode lasers

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.92434· OSTI ID:6467569
The spectral width of (GaAl)As cw single-mode diode lasers varied linearly with reciprocal output power at 300 K with a slope 50 times greater than that predicted by the Schawlow-Townes expression without partial inversion. While the spectral narrowing observed at 77 K for constant mode power is consistent with the predicted temperature dependence of the partial inversion contribution, the magnitude of the broadening can not completely be attributed to partial inversion.
Research Organization:
Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, Massachusetts 02173
OSTI ID:
6467569
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 38:7; ISSN APPLA
Country of Publication:
United States
Language:
English