Graphene saturable absorbers for VECSELs

V. J. Wittwer, C. A. Zaugg, Z. Sun, D. Popa, S. Milana, T. S. Kulmala, R. S. Sundaram, M. Mangold, M. Golling, Y. Lee, J. H. Ahn, U. Keller, A. C. Ferrari

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

1 Citation (Scopus)

Abstract

We report mode-locking of an optically pumped VECSEL using a graphene-based saturable absorber mirror (GSAM). Self-starting and stable modelocked operation is demonstrated with 473 fs pulses at 1.5 GHz repetition rate and 949 nm center wavelength. Wavelength tuning is achieved over a 46 nm bandwidth. We discuss the mirror design, the fabrication of the GSAMs, and give an outlook on further optimization of the design, including dielectric top coatings to protect the graphene and to increase the flexibility in the design.

Original languageEnglish
Title of host publicationVertical External Cavity Surface Emitting Lasers (VECSELs) IV
PublisherSPIE
ISBN (Print)9780819498793
DOIs
Publication statusPublished - 2014
EventVertical External Cavity Surface Emitting Lasers (VECSELs) IV - San Francisco, CA, United States
Duration: 2014 Feb 22014 Feb 4

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8966
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherVertical External Cavity Surface Emitting Lasers (VECSELs) IV
CountryUnited States
CitySan Francisco, CA
Period14/2/214/2/4

All Science Journal Classification (ASJC) codes

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

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  • Cite this

    Wittwer, V. J., Zaugg, C. A., Sun, Z., Popa, D., Milana, S., Kulmala, T. S., Sundaram, R. S., Mangold, M., Golling, M., Lee, Y., Ahn, J. H., Keller, U., & Ferrari, A. C. (2014). Graphene saturable absorbers for VECSELs. In Vertical External Cavity Surface Emitting Lasers (VECSELs) IV [89660X] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8966). SPIE. https://doi.org/10.1117/12.2039111