A broad-area mode-coupling model for multiple stripe semiconductor lasers

Journal Article · Wed Jan 31 23:00:00 EST 1990 · IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/3.44958· OSTI ID:6961419

Verdiell, J M ^[1]; Frey, R ^[2]

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1. Laboratoire Central de Recherches, Thomson CSF, Domaine de Corbeville, 91404 Orsay Cedex (FR)
2. Laboratoire d'Optique Quantique du Centre National de la Recherches Scientifique, Ecole Polytechnique, 91128 Palaiseau, Cedex (FR)

The authors present an analytical perturbation model for calculating the eigenmodes of multistripe diode laser arrays. In contrast to the supermode theory, the authors develop the array modes into a linear combination of broad-area modes instead of individual waveguide modes. Two perturbations from which mode coupling originates are taken into account, namely, the periodic gain and index grating formed by the current stripes and the effect of temperature variations across the junction. Results of this model are shown to be in excellent agreement with the experimental data, particularly concerning the details of the far-field structure of free-running diode arrays. Furthermore, this model provides a new physical interpretation of the coupling of modes due to temperature variations across the array width.

• OSTI ID: 6961419
• Journal Information: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (USA) Vol. 26:2; ISSN 0018-9197; ISSN IEJQA
• Country of Publication: United States
• Language: English

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426002* -- Engineering-- Lasers & Masers-- (1990-)
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TEMPERATURE GRADIENTS