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Proceedings Paper

Unraveling the phase-amplitude coupling modulation in a delay-coupled diode lasers functionality
Author(s): Pramod Kumar; Sudeshna Sinha; Vishwa Pal; John Gerard Mclnerney
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Paper Abstract

We numerically investigate the effect of phase-amplitude coupling modulation on power spectra in semiconductor lasers subject to optical injection in a face to face configuration, when a non-negligible injection delay time is taken into account. We find that as phase-amplitude coupling factor α varies, the system goes through a sequence of phase transactions between In-phase locking states to anti-phase locking states via phase-flip bifurcation. Moreover, we observed the signature of frequency discretization (Frequency Island) and uncovered the physical mechanism for the existence of multi-stability near the phase transitions regimes. Within the windows between successive anti-phases to in-phase locking regions, optical injection induced modulation in alpha, unveiling a remarkable universal feature in the various dynamics of coupled lasers system which could be useful in controlling the chirp or pulse repetition rate of a photonic integrated compact device with the aid of phase control.

Paper Details

Date Published: 22 February 2017
PDF: 10 pages
Proc. SPIE 10086, High-Power Diode Laser Technology XV, 100860Q (22 February 2017); doi: 10.1117/12.2251972
Show Author Affiliations
Pramod Kumar, Univ. College Cork (Ireland)
Sudeshna Sinha, Indian Institute of Science Education & Research Mohali (India)
Vishwa Pal, Weizmann Institute of Science (Israel)
John Gerard Mclnerney, Univ. College Cork (Ireland)
Tyndall National Institute (Ireland)

Published in SPIE Proceedings Vol. 10086:
High-Power Diode Laser Technology XV
Mark S. Zediker, Editor(s)

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