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Proceedings Paper

Determination of white and 1/f FM noise components of semiconductor laser spectrum by a delayed self-heterodyne interferometer using short delay fiber
Author(s): Mohammed Nazrul Islam; Tadakazu Nomura; Masaaki M. Imai; Md. Quamrul Huda
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Paper Abstract

The measurement and evaluation of power spectrum of a semiconductor laser by delayed self-heterodyne interferometer is demonstrated with the use of a short delay fiber. The measured spectrum is analyzed numerically including the effect of a delay time much less than the laser coherence time. The theoretical formulation developed here is found to be found to be accurate since it exhibits a peak with finite width at the center frequency of the measured lineshape. The white and 1/f components of the laser FM noise are then separated successfully by fitting numerical analysis to the experimental results.

Paper Details

Date Published: 12 November 1999
PDF: 5 pages
Proc. SPIE 3896, Design, Fabrication, and Characterization of Photonic Devices, (12 November 1999); doi: 10.1117/12.370329
Show Author Affiliations
Mohammed Nazrul Islam, Bangladesh Univ. of Engineering and Technology (Bangladesh)
Tadakazu Nomura, Toshiba Corp. (Japan)
Masaaki M. Imai, Muroran Institute of Technology (Japan)
Md. Quamrul Huda, Bangladesh Univ. of Engineering and Technology (Bangladesh)

Published in SPIE Proceedings Vol. 3896:
Design, Fabrication, and Characterization of Photonic Devices
Marek Osinski; Soo-Jin Chua; Shigefusa F. Chichibu, Editor(s)

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