Ultrafast characterization of semiconductor gain and absorber devices for mode-locked VECSELs

Caleb Baker, Maik A Scheller, Hwang Jye Yang, Stephan W Koch, Ronald J Jones, Jerome V Moloney, Antje Ruiz Perez, Wolfgang Stolz, Sadhvikas Addamane, Ganesh Balakrishnan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present a comprehensive characterization of semiconductor gain and absorber devices utilizing novel measurement techniques. Using a 20fs probe laser, a time resolution in the few femtosecond range is achieved in traditional pump and probe measurements performed on VECSELs and SESAMs. In-situ characterizations of VECSEL samples mode-locked in the sub-500fs regime reveal the fast and longtime recoveries of the gain present in real lasing conditions. Spectrally-resolved probing gives further information about the properties of carriers in VECSEL gain media. Our results indicate that stable mode-locked operation is sustained by multiple carrier relaxation mechanisms ranging from a few femtoseconds to the pico- and nanosecond regimes.

Original languageEnglish (US)
Title of host publicationVertical External Cavity Surface Emitting Lasers (VECSELs) VI
PublisherSPIE
Volume9734
ISBN (Electronic)9781628419696
DOIs
Publication statusPublished - 2016
EventVertical External Cavity Surface Emitting Lasers (VECSELs) VI - San Francisco, United States
Duration: Feb 15 2016Feb 16 2016

Other

OtherVertical External Cavity Surface Emitting Lasers (VECSELs) VI
CountryUnited States
CitySan Francisco
Period2/15/162/16/16

    Fingerprint

Keywords

  • Modelocked
  • SESAM
  • ultrafast
  • VECSEL

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Baker, C., Scheller, M. A., Yang, H. J., Koch, S. W., Jones, R. J., Moloney, J. V., ... Balakrishnan, G. (2016). Ultrafast characterization of semiconductor gain and absorber devices for mode-locked VECSELs. In Vertical External Cavity Surface Emitting Lasers (VECSELs) VI (Vol. 9734). [97340K] SPIE. https://doi.org/10.1117/12.2213671