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Frequency and temporal coherence properties of distributed Bragg reflector laser
Author(s) -
Hong Ke Jian,
Hua Zhu Ning,
Guang Zhang Hong,
Wei Man Jiang,
Juan Zhao Ling,
Chen Wei,
Wang Xin,
Liu Yu,
Qing Yuan Hai,
Xie Liang,
Wang Wei
Publication year - 2010
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.25031
Subject(s) - optics , coherence (philosophical gambling strategy) , distributed bragg reflector , microwave , laser , wavelength , waveform , heterodyne (poetry) , fiber bragg grating , physics , distributed bragg reflector laser , coherence time , phase coherence , optoelectronics , voltage , acoustics , quantum mechanics , condensed matter physics
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