Issue |
Eur. Phys. J. Appl. Phys.
Volume 25, Number 3, March 2004
|
|
---|---|---|
Page(s) | 151 - 157 | |
Section | Laser, Optics, Optoelectronics and Nanophotonics | |
DOI | https://doi.org/10.1051/epjap:2004006 | |
Published online | 21 January 2004 |
https://doi.org/10.1051/epjap:2004006
Mode-locking characteristics and relative intensity noise reduction in hybrid soliton pulse source
Department of Electrical and Electronics Engineering, University of
Gaziantep, 27310 Gaziantep, Turkey
Corresponding author: dogru@gantep.edu.tr
Received:
29
May
2002
Revised:
6
November
2003
Accepted:
11
December
2003
Published online:
21
January
2004
The noise and mode-locking phenomena of a hybrid soliton pulse source (HSPS) utilizing different fiber Bragg gratings (FBG) with or without linear chirp are described. The HSPS is modeled by a time-domain solution of the coupled-mode equations including spontaneous emission noise, and relative intensity noise (RIN) is calculated using numerical solutions of these equations. It is found that transform-limited pulses over a wide tuning range around the fundamental mode-locking frequency are generated from mode-locked HSPS with linearly chirped uniform and Gaussian apodized FBGs. Mode-locked pulses that are not transform-limited are generated over a wide tuning range from HSPS with Gaussian apodized and uniform FBGs. These gratings can give transform-limited pulses only over a limited tuning range around the fundamental mode-locking frequency. It is also found that RIN reduction is possible for the mode-locked HSPS by selecting a suitable apodization function such as Gaussian and linear chirp rate.
PACS: 42.60.Fc – Modulation, tuning, and mode locking / 42.55.Wd – Fiber lasers / 42.60.Mi – Dynamical laser instabilities; noisy laser behavior
© EDP Sciences, 2004
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