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Influence of injection-current noise on the spectral characteristics of semiconductor lasers

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3 Author(s)
Burkett, W.H. ; Dept. of Phys., Arkansas Univ., Fayetteville, AR, USA ; Baolong Lu ; Min Xiao

The spectral characteristics of a semiconductor laser are altered by injecting additional noise current into its current-drive port. A continuously varying spectral linewidth from about 5 MHz to above 100 MHz is achieved experimentally in this semiconductor laser. The conditions under which the line shape changes from a standard Lorentzian shape to a Gaussian shape as functions of laser power and noise current are investigated and compared with an existing theoretical treatment

Published in:

Quantum Electronics, IEEE Journal of  (Volume:33 ,  Issue: 11 )