Study on Frequency Coherence Properties of Light Beams

Zhu, Ning Hua; Li, Wei; Wang, Li Xian; Chen, Shuo Fu; Ke, Jianhong; Zhang, Ya Li; Wen, Ji Min; Liu, Yu; Wang, Xin; Yan, Hai Qing; Xie, Liang

doi:10.1109/jqe.2009.2013102

IEEE J. Quantum Electron.

2009

DOI: 10.1109/jqe.2009.2013102

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Study on Frequency Coherence Properties of Light Beams

Ning Hua Zhu

Wei Li

Li Xian Wang

et al.

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Cited by 8 publications

References 19 publications

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Frequency and temporal coherence properties of distributed Bragg reflector laser

Zhu

Zhang

et al. 2010

Micro & Optical Tech Letters

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High efficiency low-voltage power amplifier design by second-harmonic manipulation, Int J RF Microw Adaptive digital feedback predistortion technique for linearizing power amplifiers, IEEE Trans Microwave Theory Tech 55 (2007), 932-940. 8. J. Kim, C. Park, J. Moon, and B. Kim, Analysis of adaptive digital feedback linearization techniques, IEEE Trans Circuits Syst I, in press.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.

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Frequency and temporal coherence properties of distributed Bragg reflector laser

Zhu

Zhang

et al. 2010

Micro & Optical Tech Letters

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Optical spectral relation between the master and the frequency-locked slave lasers

Zhu

Wang

et al. 2010

Optics Communications

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A novel phase noise suppression method for coherent detection by utilizing two adjacent longitudinal modes generated from a supercontinuum multi-wavelength source

Pan

Xian

et al. 2011

J. Phys.: Conf. Ser.

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A novel phase noise suppression method for coherent detection by utilizing two adjacent longitudinal modes generated from a supercontinuum multi-wavelength source Abstract. A novel phase noise suppression method for coherent detection is proposed. It uses two adjacent longitudinal modes of a multi-wavelength source, as signal light and coherent light respectively, which are both launched into the optical fiber. And heterodyne synchronous demodulation structure is used in the receiver. The performance of a back-to-back system with 100 Gbit/s NRZ-QPSK utilizing this novel method is investigated by VPI. The simulation results show that phase noise in this coherent detection scheme is suppressed significantly, which is resulted from the correlating phase and fixed frequency spacing of adjacent longitudinal modes.

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Study on Frequency Coherence Properties of Light Beams

Cited by 8 publications

References 19 publications

Frequency and temporal coherence properties of distributed Bragg reflector laser

Frequency and temporal coherence properties of distributed Bragg reflector laser

Optical spectral relation between the master and the frequency-locked slave lasers

A novel phase noise suppression method for coherent detection by utilizing two adjacent longitudinal modes generated from a supercontinuum multi-wavelength source

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