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Proceedings Paper

Linewidth of swept laser source
Author(s): Haitham Omran; Sami Sakhawy; Mohamed Shalaby; Diaa Khalil
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Paper Abstract

In this work we study the factors affecting the linewidth of a swept laser source. A ring fiber laser source based on EDFA and a Fabry-Perort resonator is used for this purpose. With this setup a swept source with a linewidth of better than 0.1 nm is obtained over a tuning range of about 47 nm limited by the spectral gain of the EDFA amplifier used. The factors affecting the source linewidth are then examined by modeling the EFDA amplifier and the swept source and then compared to the practical measured results of an EDFA swept laser source. The measurements and simulations both show that the swept laser linewidth is about 10 times narrower than the Fabry-Perot filter 3dB linewidth.

Paper Details

Date Published: 30 January 2012
PDF: 8 pages
Proc. SPIE 8213, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVI, 82133O (30 January 2012); doi: 10.1117/12.908641
Show Author Affiliations
Haitham Omran, Ain Shams Univ. (Egypt)
Sami Sakhawy, Ain Shams Univ. (Egypt)
Mohamed Shalaby, Ain Shams Univ. (Egypt)
Diaa Khalil, Ain Shams Univ. (Egypt)
Si-Ware Systems (Egypt)


Published in SPIE Proceedings Vol. 8213:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVI
Joseph A. Izatt; James G. Fujimoto; Valery V. Tuchin, Editor(s)

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