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A Theoretical Analysis of Quantum Noise in Semiconductor Lasers Operating with Self-Sustained Pulsation

Minoru YAMADA

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Summary :

The semiconductor lasers operating with self-sustained pulsation are under developing to be lasers which are less disturbed by the optical feedback from a surface of optical disk. Structures setting saturable absorbing regions utilizing the multi-layer configuration become popularly used for giving stronger pulsation. However, the quantum (intensity) noise in these lasers tends to be enhanced. The ridge stripe structure, of which almost self-sustained pulsation lasers consist, seems to give a leak current flowing along plane of the cladding region. Such leak current also increases the quantum noise. In this paper, theoretical calculations of operating characteristics, such as the self-sustained pulsation, the optical output, the quantum noise as well as the transverse filed profile, are theoretically analyzed by including the above mentioned several phenomena.

Publication
IEICE TRANSACTIONS on Electronics Vol.E81-C No.2 pp.290-298
Publication Date
1998/02/25
Publicized
Online ISSN
DOI
Type of Manuscript
Category
Quantum Electronics

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