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

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

Fingerprint Dive into the research topics of 'Variable-linewidth light source based on Brownian motion random walk in optical phase'. Together they form a unique fingerprint.

Cite this