Frequency and temporal coherence properties of distributed Bragg reflector laser

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 ana...

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Bibliographic Details
Published in:Microwave and optical technology letters 2010-04, Vol.52 (4), p.822-825
Main Authors: 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
Format: Article
Language:English
Subjects:
Bragg reflectors
Coherence
distributed Bragg reflector laser
frequency coherence
Lasers
Microwaves
optical heterodyning
Spectra
Temporal logic
Voltage
Wavelengths
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Summary: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
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.25031