Control over spectral content via differential pumping of a monolithic passively mode-locked quantum dot laser

K. Brown, B. Wysocki, M. Fanto, J. Malowicki, V. Kovanis, L. Lester

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

1 Citation (Scopus)

Abstract

A monolithic two-section quantum dot semiconductor laser is differentially pumped to form non-uniform current injection in the gain region. We show that the nature of the spectral content in the output signal is affected by this differential pumping; despite the fact that the separately pumped gain regions are not electrically isolated in this device. Both negative (red-shift) and positive (blue-shift) spectral chirps were observed during mode-locked operation. It is also demonstrated that mode locked operation is achieved with a much larger set of injection current / absorber bias voltage pairs than was previously possible with single-pad current injection.

Original languageEnglish
Title of host publicationEnabling Photonics Technologies for Defense, Security, and Aerospace Applications III
DOIs
Publication statusPublished - Nov 15 2007
Externally publishedYes
EventEnabling Photonics Technologies for Defense, Security, and Aerospace Applications III - Orlando, FL, United States
Duration: Apr 9 2007Apr 10 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6572
ISSN (Print)0277-786X

Other

OtherEnabling Photonics Technologies for Defense, Security, and Aerospace Applications III
CountryUnited States
CityOrlando, FL
Period4/9/074/10/07

Keywords

  • Chirp
  • Differential pumping
  • Passive mode locking
  • Quantum dots
  • Semiconductor lasers

ASJC Scopus subject areas

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

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