Near-infrared, mode-locked waveguide lasers with multi-GHz repetition rates

A. Choudhary, A. A. Lagatsky, Z. Y. Zhang, K. J. Zhou, Q. Wang, R. A. Hogg, K. Pradeesh, E. U. Rafailov, B. Resan, A. E.H. Oehler, K. J. Weingarten, W. Sibbett, C. T.A. Brown, D. P. Shepherd

Research output: Chapter in Book/Published conference outputConference publication


In this work, we discuss mode-locking results obtained with low-loss, ion-exchanged waveguide lasers. With Yb3+-doped phosphate glass waveguide lasers, a repetition rate of up to 15.2 GHz was achieved at a wavelength of 1047 nm with an average power of 27 mW and pulse duration of 811 fs. The gap between the waveguide and the SESAM introduced negative group velocity dispersion via the Gires Tournois Interferometer (GTI) effect which allowed the soliton mode-locking of the device. A novel quantum dot SESAM was used to mode-lock Er3+, Yb3+-doped phosphate glass waveguide lasers around 1500 nm. Picosecond pulses were achieved at a maximum repetition rate of 6.8 GHz and an average output power of 30 mW. The repetition rate was tuned by more than 1 MHz by varying the pump power.

Original languageEnglish
Title of host publicationSolid State Lasers XXIII
Subtitle of host publicationTechnology and Devices
ISBN (Print)9780819498724
Publication statusPublished - 1 Jan 2014
EventSolid State Lasers XXIII: Technology and Devices - San Francisco, CA, United States
Duration: 2 Feb 20144 Feb 2014


ConferenceSolid State Lasers XXIII: Technology and Devices
Country/TerritoryUnited States
CitySan Francisco, CA

Bibliographical note

© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE).


  • Channel waveguides
  • Erbium/Ytterbium doped gain media
  • Mode-locked laser
  • Quantum dot devices
  • Waveguide laser
  • Ytterbium doped gain media


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