@article{a6335f2de78f4b0790112eeb2a120782,
title = "Variable-linewidth light source based on Brownian motion random walk in optical phase",
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.",
keywords = "Digital coherent communication, Linewidth, Phase modulation, Phase noise, Random walk",
author = "Jun Mochizuki and Keizo Inagaki and Lu, {Guo Wei} and Takahide Sakamoto and Yuki Yoshida and Atsushi Kanno and Naokatsu Yamamoto and Tetsuya Kawanishi",
note = "Funding Information: This study was partially supported by the Japanese Government funding for “R&D to Expand Radio Frequency Resources” from the Ministry of Internal Affairs and Communications. The authors would like to thank Mr. Zu-Kai Weng, for his fruitful discussions. Publisher Copyright: {\textcopyright} 2020 The Institute of Electronics, Information and Communication Engineers",
year = "2020",
doi = "10.1587/ELEX.17.20200216",
language = "English",
volume = "17",
pages = "1--4",
journal = "IEICE Electronics Express",
issn = "1349-2543",
publisher = "The Institute of Electronics, Information and Communication Engineers (IEICE)",
number = "16",
}