Stable two-mode emission from semiconductor quantum dot laser

Kouichi Akahane, Naokatsu Yamamoto, Atsushi Kanno, Keizo Inagaki, Toshimasa Umezawa, Tetsuya Kawanishi, Takashi Endo, Yasunori Tomomatsu, Toshio Yamanoi

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


A two-wavelength emission laser (two-mode laser) has been fabricated using semiconductor quantum dots as the gain medium in the external cavity configuration. Two-mode laser emission with a separation of 98.8 GHz has been achieved by controlling the etalon and narrow-band filter setting. A 98.4 GHz beat signal was observed using the Michelson interferometer configuration, indicating that these emissions occurred simultaneously.

Original languageEnglish
Article number104001
JournalApplied Physics Express
Issue number10
Publication statusPublished - 2013 Oct 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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