Dynamic properties of wavelength switching in a widely tunable semiconductor laser for optical coherence tomography

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

We present results on the investigation of the dynamics of wavelength switching in a monolithically integrated widely tunable semiconductor ring laser for application in swept source optical coherence tomography. In this application wavelength switching within several tens of nanoseconds is desirable to reduce motion blur artefacts during imaging. The device under test is realized in an InGaAsP/InP platform, operates around 1530 nm wavelength and has been shown to have a tuning range over 50 nm. Both measurements and simulations of the wavelength switching behavior of the laser are presented. Tuning is achieved using voltage controlled electro-refractive phase modulators with a response faster than 1 GHz and negligible residual thermal tuning. The fastest switching strategy, of the three that we compare in our simulations, is shown to be the one that relies on rapid power-off of the origin wavelength. The longitudinal cavity mode position, that has an important impact on the switching time and switching stability, is shown to be hard to predict after switching due to gain-phase coupling in the amplifier.

Originele taal-2Engels
TitelSemiconductor Lasers and Laser Dynamics IX
RedacteurenMarc Sciamanna, Rainer Michalzik, Krassimir Panajotov, Sven Hofling
UitgeverijSPIE
Aantal pagina's8
ISBN van elektronische versie9781510634848
DOI's
StatusGepubliceerd - 1 jan 2020
EvenementSemiconductor Lasers and Laser Dynamics IX 2020 - None, Frankrijk
Duur: 6 apr 202010 apr 2020

Publicatie series

NaamProceedings of SPIE - The International Society for Optical Engineering
Volume11356
ISSN van geprinte versie0277-786X
ISSN van elektronische versie1996-756X

Congres

CongresSemiconductor Lasers and Laser Dynamics IX 2020
LandFrankrijk
StadNone
Periode6/04/2010/04/20

Vingerafdruk Duik in de onderzoeksthema's van 'Dynamic properties of wavelength switching in a widely tunable semiconductor laser for optical coherence tomography'. Samen vormen ze een unieke vingerafdruk.

  • Citeer dit

    Pajković, R., Garbi, D., Williams, K., & Bente, E. (2020). Dynamic properties of wavelength switching in a widely tunable semiconductor laser for optical coherence tomography. In M. Sciamanna, R. Michalzik, K. Panajotov, & S. Hofling (editors), Semiconductor Lasers and Laser Dynamics IX [113560I] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11356). SPIE. https://doi.org/10.1117/12.2555620