Photonics (Apr 2015)

Quantum Dot Laser for a Light Source of an Athermal Silicon Optical Interposer

  • Nobuaki Hatori,
  • Yutaka Urino,
  • Takanori Shimizu,
  • Makoto Okano,
  • Tsuyoshi Yamamoto,
  • Masahiko Mori,
  • Takahiro Nakamura,
  • Yasuhiko Arakawa

DOI
https://doi.org/10.3390/photonics2020355
Journal volume & issue
Vol. 2, no. 2
pp. 355 – 364

Abstract

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This paper reports a hybrid integrated light source fabricated on a silicon platform using a 1.3 μm wavelength quantum dot array laser. Temperature insensitive characteristics up to 120 °C were achieved by the optimum quantum dot structure and laser structure. Light output power was obtained that was high enough to achieve an optical error-free link of a silicon optical interposer. Furthermore, we investigated a novel spot size convertor in a silicon waveguide suitable for a quantum dot laser for lower energy cost operation of the optical interposer.

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