Results 211 to 220 of about 10,651 (253)
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Coherent Optical Communication
Asia Optical Fiber Communication and Optoelectronic Exposition and Conference, 2008Optical coherent receivers with subsequent DSP show great promise as enabling technologies for ultra-high information rate optical transmission systems. DSP alleviates the need to lock the phases of the LO and transmitter signal, which is one of the limiting factors for the use of coherent receivers in the optical domain.
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The Age of Optical Coherent Communication
Conference on Lasers and Electro-Optics 2012, 2012Recent emergence of coherent optical modem has solved a number of difficult problems in optical transmission, resulting in 10× increase in capacity. The latest research of super-channels further increases spectral efficiency and network flexibility.
Kuang-Tsan Wu +14 more
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Coherent optical communication
International Zurich Seminar on Digital Communications, Electronic Circuits and Systems for Communications., 2002Activities associated with the development of coherent optical communication systems for application in future public broadband networks are reviewed. It is pointed out that the main future transmission medium, the optical single-mode fiber, provides an extremely high bandwidth which will have to be utilized when high-capacity-demanding digital ...
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A Review of Coherent Optical Communication
MILCOM 1985 - IEEE Military Communications Conference, 1985Coherent optical communications for fiber transmission media are being seriously considered for both commercial and military applications. A variety of modulation schemes have been examined both in the laboratory and in field trials to verify the feasibility of this transmission technique using optical fibers.
Gerd E. Keiser +2 more
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Coherent Optical Communication
Seventh Topical Meeting on Integrated and Guided-Wave Optics, 1984Virtually all fibre transmission systems up to the present have used simple intensity modulation of the transmit laser, most frequently in the form of binary ON/OFF modulation. At the receiver, incoming optical power has been converted directly to photocurrent in a photodetector.
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Coherent Optical Communications
20th European Microwave Conference, 1990, 1990A variety of coherent optical communications are reviewed in comparison with microwave communications.
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Coherent Optical Fiber Communications
Journal of Modern Optics, 1989(1989). Coherent Optical Fiber Communications. Journal of Modern Optics: Vol. 36, No. 4, pp. 552-552.
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Modern coherent optical communications
2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006Coherent systems can achieve better spectral efficiency, and better sensitivity than conventional on-off keying systems. This paper reviews recent research efforts and examines future possibilities in the field.
Leonid G. Kazovsky, Georgios Kalogerakis
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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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