High-power thulium lasers on a silicon photonics platform Academic Article uri icon

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abstract

  • Mid-infrared laser sources are of great interest for various applications, including light detection and ranging, spectroscopy, communication, trace-gas detection, and medical sensing. Silicon photonics is a promising platform that enables these applications to be integrated on a single chip with low cost and compact size. Silicon-based high-power lasers have been demonstrated at 1.55 μm wavelength, while in the 2 μm region, to the best of our knowledge, high-power, high-efficiency, and monolithic light sources have been minimally investigated. In this Letter, we report on high-power CMOS-compatible thulium-doped distributed feedback and distributed Bragg reflector lasers with single-mode output powers up to 267 and 387 mW, and slope efficiencies of 14% and 23%, respectively. More than 70 dB side-mode suppression ratio is achieved for both lasers. This work extends the applicability of silicon photonic microsystems in the 2 μm region.

authors

  • Li, Nanxi
  • Purnawirman
  • Su, Zhan
  • Salih Magden, E
  • Callahan, Patrick T
  • Shtyrkova, Katia
  • Xin, Ming
  • Ruocco, Alfonso
  • Baiocco, Christopher
  • Ippen, Erich P
  • Kärtner, Franz X
  • Bradley, Jonathan
  • Vermeulen, Diedrik
  • Watts, Michael R

publication date

  • March 15, 2017