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Proceedings Paper

Isolator-free DFB laser diode operating in feedback regime V
Author(s): Ayman Mokhtar; Leonard MacEachern; Samy Mahmoud
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Paper Abstract

A DFB laser diode is forced to operate in feedback Regime V by omitting the laser isolator and using an extended cavity mode. The DFB laser diode is coupled to a Fiber Bragg Grating (FBG) that has a reflectivity based on parameters extracted from optical back-reflection measurements. A stable wavelength, narrow linewidth and low relative intensity noise (RIN) were obtained using the proposed configuration. A DFB diode laser coupled to the FBG achieved a RIN level of (-158.5 dB/Hz) at a 1 GHz frequency offset, comparable to results obtained for a DFB diode laser with an isolator (-157.9 dB/Hz), for the same average optical power (5.1 dBm) at 1310 nm.

Paper Details

Date Published: 2 October 2006
PDF: 9 pages
Proc. SPIE 6389, Active and Passive Optical Components for Communications VI, 63891F (2 October 2006); doi: 10.1117/12.707902
Show Author Affiliations
Ayman Mokhtar, Carleton Univ. (Canada)
Leonard MacEachern, Carleton Univ. (Canada)
Samy Mahmoud, Carleton Univ. (Canada)

Published in SPIE Proceedings Vol. 6389:
Active and Passive Optical Components for Communications VI
Achyut K. Dutta; Yasutake Ohishi; Niloy K. Dutta; Jesper Moerk, Editor(s)

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