Results 211 to 220 of about 3,937,624 (257)
Some of the next articles are maybe not open access.

Coherent Optical Communications

20th European Microwave Conference, 1990, 1990
A variety of coherent optical communications are reviewed in comparison with microwave communications.
openaire   +1 more source

Modern coherent optical communications

2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006
Coherent 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
openaire   +1 more source

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.
openaire   +1 more source

Adaptive Optics for the Atmospheric Coherent Optical Communications

Imaging and Applied Optics 2015, 2015
We 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
openaire   +1 more source

Homodyne coherent optical receiver for intersatellite communication

Applied Optics, 2018
For 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
openaire   +2 more sources

Coherent Optical Communication Systems

IETE Journal of Education, 1997
This 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.
openaire   +1 more source

Coherent optical fiber communications

SPIE Proceedings, 1991
The 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.
openaire   +1 more source

Dispersion compensation in coherent fiber-optic communications

Optics Letters, 1987
Linear 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
openaire   +2 more sources

Coherent Optical Communication Systems

2011
The 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).
openaire   +1 more source

Home - About - Disclaimer - Privacy