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Proceedings Paper

Qualitative analysis of ultra-short optical dissipative solitary pulses in the actively mode-locked semiconductor heterolasers with an external fiber cavity
Author(s): Alexandre S. Shcherbakov; Joaquin Campos Acosta; Pedro Moreno Zarate; Alicia Pons Aglio
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Paper Abstract

An advanced qualitative characterization of simultaneously existing various low-power trains of ultra-short optical pulses with an internal frequency modulation in a distributed laser system based on semiconductor heterostructure is presented. The scheme represents a hybrid cavity consisting of a single-mode heterolaser operating in the active mode-locking regime and an external long single-mode optical fiber exhibiting square-law dispersion, cubic Kerr nonlinearity, and linear optical losses. In fact, we consider the trains of optical dissipative solitons, which appear within double balance between the second-order dispersion and cubic-law nonlinearity as well as between the active-medium gain and linear optical losses in a hybrid cavity. Moreover, we operate on specially designed modulating signals providing non-conventional composite regimes of simultaneous multi-pulse active mode-locking. As a result, the mode-locking process allows shaping regular trains of picosecond optical pulses excited by multi-pulse independent on each other sequences of periodic modulations. In so doing, we consider the arranged hybrid cavity as a combination of a quasi-linear part responsible for the active mode-locking by itself and a nonlinear part determining the regime of dissipative soliton propagation. Initially, these parts are analyzed individually, and then the primarily obtained data are coordinated with each other. Within this approach, a contribution of the appeared cubically nonlinear Ginzburg-Landau operator is analyzed via exploiting an approximate variational procedure involving the technique of trial functions.

Paper Details

Date Published: 21 February 2011
PDF: 10 pages
Proc. SPIE 7933, Physics and Simulation of Optoelectronic Devices XIX, 793324 (21 February 2011); doi: 10.1117/12.873912
Show Author Affiliations
Alexandre S. Shcherbakov, National Institute for Astrophysics, Optics and Electronics (Mexico)
Joaquin Campos Acosta, Institute for Applied Physics (Spain)
Pedro Moreno Zarate, National Institute for Astrophysics, Optics and Electronics (Mexico)
Nova Univ. (Mexico)
Alicia Pons Aglio, Institute for Applied Physics (Spain)

Published in SPIE Proceedings Vol. 7933:
Physics and Simulation of Optoelectronic Devices XIX
Bernd Witzigmann; Fritz Henneberger; Yasuhiko Arakawa; Alexandre Freundlich, Editor(s)

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