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Proceedings Paper

A highly coherent multi-section semiconductor swept source OCT laser
Author(s): Svetlana Slepneva; Anton Kovalev; Aritra Roy; Saroj Kanta Patra; Konstantin Grigorenko; Natalia Rebrova; Alexis Verschelde; Patrice Camelin; Amy Roche; Mathias Marconi; Massimo Giudici; Evgeny Viktorov; Tomasz Piwonski; Guillaume Huyet
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Paper Abstract

We show theoretically that optical feedback can be used to phase lock the successive modes of multi-section frequency-swept source lasers as a means to increase the coherence length. The time-gated feedback technique can be applied to transfer the coherence between the subsequent modes to retain the coherence along the full sweep or to synchronise two independent swept sources. In analogy with CW lasers, we derive an Adler equation describing the locking conditions. When the constant feedback is applied, the laser can operate in a self-mixing, mode-locking or chaotic regime, depending on the sweeping speed. In order to verify the theoretical results, we have developed an experimental set up and performed initial measurements with optical feedback.

Paper Details

Date Published: 2 March 2020
PDF: 6 pages
Proc. SPIE 11274, Physics and Simulation of Optoelectronic Devices XXVIII, 112742A (2 March 2020); doi: 10.1117/12.2545873
Show Author Affiliations
Svetlana Slepneva, Univ. Côte d'Azur, CNRS INPHYNI (France)
Cork Institute of Technology (Ireland)
Univ. College Cork (Ireland)
Anton Kovalev, ITMO Univ. (Russian Federation)
Aritra Roy, Cork Institute of Technology (Ireland)
Univ. College Cork (Ireland)
Saroj Kanta Patra, Cork Institute of Technology (Ireland)
Univ. College Cork (Ireland)
Konstantin Grigorenko, ITMO Univ. (Russian Federation)
Natalia Rebrova, Cork Institute of Technology (Ireland)
Alexis Verschelde, Univ. Côte d'Azur, CNRS INPHYNI (France)
Patrice Camelin, Univ. Côte d'Azur, CNRS INPHYNI (France)
Amy Roche, Univ. Côte d'Azur, CNRS INPHYNI (France)
Cork Institute of Technology (Ireland)
Univ. College Cork (Ireland)
Mathias Marconi, Univ. Côte d'Azur, CNRS INPHYNI (France)
Massimo Giudici, Univ. Côte d'Azur, CNRS INPHYNI (France)
Evgeny Viktorov, ITMO Univ. (Russian Federation)
Tomasz Piwonski, Cork Institute of Technology (Ireland)
Univ. College Cork (Ireland)
Guillaume Huyet, Univ. Côte d'Azur, CNRS INPHYNI (France)


Published in SPIE Proceedings Vol. 11274:
Physics and Simulation of Optoelectronic Devices XXVIII
Bernd Witzigmann; Marek Osiński; Yasuhiko Arakawa, Editor(s)

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