Variable-linewidth light source based on Brownian motion random walk in optical phase

Jun Mochizuki*, Keizo Inagaki, Guo Wei Lu, Takahide Sakamoto, Yuki Yoshida, Atsushi Kanno, Naokatsu Yamamoto, Tetsuya Kawanishi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We proposed a variable linewidth light source using random walk phase noise. As a demonstration, the impact of the laser linewidth on the error-vector magnitude performance in the optical QPSK transmission was evaluated by using the proposed laser source experimentally, where the linewidth tunable range was from 40 kHz to 5 MHz.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
Journalieice electronics express
Volume17
Issue number16
DOIs
Publication statusPublished - 2020

Keywords

  • Digital coherent communication
  • Linewidth
  • Phase modulation
  • Phase noise
  • Random walk

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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