Frequency and temporal coherence properties of distributed Bragg reflector laser

✍ Scribed by Jian Hong Ke; Ning Hua Zhu; Hong Guang Zhang; Jiang Wei Man; Ling Juan Zhao; Wei Chen; Xin Wang; Yu Liu; Hai Qing Yuan; Liang Xie; Wei Wang

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 108 KB
• Volume: 52
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.25031

✦ Synopsis

Abstract

This article presents the investigation of frequency and temporal coherence properties of distributed Bragg reflector laser. In this scheme, a square‐waveform voltage is applied to the phase section of the laser to tune optical wavelength, and delayed optical heterodyne technique is used for the analysis of spectral characteristics. Experiments show that lightwaves emitted from the same active region asynchronously are partially frequency and temporal coherent. When the two wavelengths are closer, the two waves are strongly coherent, and the coherence properties get weak as the delay time increases. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:822–825, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25031