High-temperature operation of photonic-crystal lasers for on-chip optical interconnection

Koji Takeda*, Tomonari Sato, Takaaki Kakitsuka, Akihiko Shinya, Kengo Nozaki, Chin Hui Chen, Hideaki Taniyama, Masaya Notomi, Shinji Matsuo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


To meet the demand for light sources for on-chip optical interconnections, we demonstrate the continuous-wave (CW) operation of photonic-crystal (PhC) nanocavity lasers at up to 89.8°C by using InP buried heterostructures (BH). The wavelength of a PhC laser can be precisely designed over a wide range exceeding 100 nm by controlling the lattice constant of the PhC. The dynamic responses of the PhC laser are also demonstrated with a 3-dB bandwidth of over 7.0 GHz at 66.2°C. These results reveal the laser's availability for application to wavelength division multiplexed (WDM) optical interconnection on CMOS chips. We discuss the total bandwidths of future on-chip optical interconnections, and report the capabilities of PhC lasers.

Original languageEnglish
Pages (from-to)1244-1251
Number of pages8
JournalIEICE Transactions on Electronics
Issue number7
Publication statusPublished - 2012 Jul
Externally publishedYes


  • Buried heterostructures
  • Optical interconnections
  • Photonic-crystal lasers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


Dive into the research topics of 'High-temperature operation of photonic-crystal lasers for on-chip optical interconnection'. Together they form a unique fingerprint.

Cite this