A discretely tunable mode-locked laser with 32 wavelengths and 100-GHz channel spacing using an arrayed waveguide grating

K. R. Tamura, Y. Inoue, K. Sato, T. Komukai, A. Sugita, M. Nakazawa

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

In this letter, we demonstrate a tunable mode-locked laser (time-to-wavelength mapped laser) with a 100-GHz channel spacing (1535.5-1560.5 nm) that uses a 32-wavelength silica-on-silicon planar lightwave circuit arrayed waveguide grating (AWG) for realizing a wavelength-dependent delay. The wavelength is selected by changing the mode-locking frequency. Mode-locking was realized by modulating the electroabsorption modulator (∼10 GHz) or the gain of the semiconductor amplifier (∼5 GHz). By matching the period of the Fabry-Pérot resonances in the InGaAsP device with the channel spacing of the AWG, wavelength tuning was realized over a broad wavelength range by only changing the mode-locking frequency.

Original languageEnglish
Pages (from-to)1227-1229
Number of pages3
JournalIEEE Photonics Technology Letters
Volume13
Issue number11
DOIs
Publication statusPublished - 2001 Nov 1
Externally publishedYes

Keywords

  • Laser tuning
  • Mode-locked lasers
  • Optical fiber communication
  • Optical pulse generation
  • Wavelength-division multiplexing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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