Supermode analysis of phase-locked arrays of semiconductor lasers
Journal Article
·
· Opt. Lett.; (United States)
The optical characteristics of phase-locked semiconductor laser arrays are formulated in terms of the array supermodes, which are the eigenmodes of the composite-array waveguide, by using coupled-mode theory. These supermodes are employed to calculate the near fields, the far fields, and the difference in the longitudinal-mode oscillation wavelengths of the array. It is shown that the broadening in the far-field beam divergence, as well as the broadening of each of the longitudinal modes that were observed in phase-locked arrays, may arise from the excitation of an increasing number of supermodes at increasing pumping levels.
- Research Organization:
- California Institute of Technology, Pasadena, California 91125
- OSTI ID:
- 6752272
- Journal Information:
- Opt. Lett.; (United States), Journal Name: Opt. Lett.; (United States) Vol. 9:4; ISSN OPLED
- Country of Publication:
- United States
- Language:
- English
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