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Proceedings Paper

Correlation between tuning section electrical noise and optical amplitude fluctuations in DBR two- and three-section tunable lasers emitting around 1.55 µm
Author(s): Mikhael Myara; Philippe Signoret; Jean-Philippe Tourrenc; Joel Jacquet; Bernard Pierre Orsal; Robert M. Alabedra
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Paper Abstract

Most common monomode tunable laser diodes use carriers injection to change a bulky semi-conductor material's optical index (through absorption), with the aim of switching the emission wavelength, thanks to the phasis comb spectrum or Bragg filtering evolution. This index change existe in the active, phase and Bragg section. Independently, current injection in a laser diode involves the existance of a fundamental shot noise and of excess 1/f noise. This noise power creates optical index fluctuations in all of the 3 sections, and so modulates the laser's light field. As there is a close link between absorption and refraction index in semiconductors, through Kramers-Kronig relationships this modulation has an influence on both phase and amplitude of the laser field. The aim of this paper is to establish the correlations existing between electrical shot noise and 1/f noise of the tuning sections and the laser field's optical noise.

Paper Details

Date Published: 16 May 2003
PDF: 11 pages
Proc. SPIE 5111, Fluctuations and Noise in Photonics and Quantum Optics, (16 May 2003); doi: 10.1117/12.500080
Show Author Affiliations
Mikhael Myara, Univ. Montpellier II (France)
Philippe Signoret, Univ. Montpellier II (France)
Jean-Philippe Tourrenc, Univ. Montpellier II (France)
Joel Jacquet, Alcatel Research and Innovation (France)
Bernard Pierre Orsal, Univ. Montpellier II (France)
Robert M. Alabedra, Univ. Montpellier II (France)

Published in SPIE Proceedings Vol. 5111:
Fluctuations and Noise in Photonics and Quantum Optics
Derek Abbott; Jeffrey H. Shapiro; Yoshihisa Yamamoto, Editor(s)

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