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Chaotic Optical Communication Over 1000 km Transmission by Coherent Detection
Journal of Lightwave Technology, 2020Chaotic optical communication was originally proposed to provide high-level physical layer encryption. For high-speed and long-distance transmission, chaotic signal is very sensitive to channel impairments such as dispersion and Kerr fiber nonlinearity ...
Zhao Yang +5 more
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Coherent Optical Communication Systems
IETE Journal of Education, 1997This paper presents an overview of coherent optical fiber communication systems. The fundamental principle is described and the performance limits under shot noise limited operation for various modulation and demodulation schemes are compared with respect to the quantum limit.
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Coherent Optical Communication Technology
Optical Fiber Communication Conference, 2015This tutorial lecture discusses fundamentals of the coherent optical communication technology. It covers quantum mechanical understanding of coherent (heterodyne and homodyne) detection, optical circuits for coherent receivers, and digital signal processing for coherent communications.
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Coherent Optical Communications: What Next?
Optical Amplifiers and Their Applications, 2005Modulation formats for optical communication have evolved from NRZ to RZ to CSRZ, and recently to D(Q)PSK, a coherent modulation technique. Coherent optical communications, extensively investigated before the arrival of EDFA, is attracting renewed interest.
Guifang Li +4 more
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Homodyne coherent optical receiver for intersatellite communication
Applied Optics, 2018For increasing the data rate and reducing the power consumption in satellite communication systems, free-space optical communication technology has been verified as an attractive alternative to traditional radiofrequency communication systems. In this study, a high-sensitivity homodyne coherent optical receiver was demonstrated. A sensitivity of -59.2
Chaolei, Yue +7 more
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Coherent Optical Communication Systems
2011The rapid evolution of long-haul optical communications systems, witnessed in the last five years, is due to the gradual adoption of spectrally efficient, multilevel modulation formats, in conjunction with polarization division multiplexing (PDM) and coherent intradyne detection assisted by digital signal processing (DSP).
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Coherent optical fiber communications
SPIE Proceedings, 1991The very high detection sensitivities and selectivities associated with coherent lightwave techniques furnish a basis for the exploitation of the great potential bandwidth of single-mode fibers in point-to-point and point-to-multipoint transmission.
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Dispersion compensation in coherent fiber-optic communications
Optics Letters, 1987Linear filtering techniques in coherent communications systems appear to offer a useful method for increasing the bandwidth in dispersion-limited fiber-optical signal propagation. These techniques are described, and the requirements on filter performance are outlined. Bandwidth is shown to be related to the square root of the filter figure of merit.
R G, Priest, T G, Giallorenzi
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Adaptive Optics for the Atmospheric Coherent Optical Communications
Imaging and Applied Optics 2015, 2015We present the results that the mixing efficiency and the bit-error-rate of the atmospheric coherent optical communications improved by a real 127-actuators adaptive optics system operating on 1550nm wavelength on a 1.8m telescope.
Chao Liu +4 more
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Coherent optical space communications
2006This paper reviews the present state of concepts and technologies of coherent optical space communications. Emphasis is placed on the receiving segment. Heterodyne and homodyne reception allows to realize sensitivities close to the theoretical limits which amount to as little as 10 to 40 photons per bit.
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