22 March 1983 Coherent Optical Fiber Communication Potential And Problems
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Abstract
Optical guided wave transmission has provided both economic and technical advantages for an array of telecommunication applications. The advances in capability of optical transmission have been the result of dramatic improvements in fiber and other opto-electronic devices. What has not changed significantly is the technique of superimposing information onto the optical carrier. As a result, the information carrying capacity and also the repeater free operation of guided optical wave systems have not reached their full poten-tial. Coherent optical communications is an approach whereby information is carried by either the amplitude, frequency or phase of an optical carrier. Heterodyne detection would increase receiver sensitivity and permit closer optical carrier spacing and thus increase information carrying capacity. This would be achieved by IF filtering with highly selective electrical networks. There are several implementation difficulties that must be overcome to achieve the advantages of optical coherent communications.
© (1983) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
E. E. Basch, H. A. Carnes, "Coherent Optical Fiber Communication Potential And Problems", Proc. SPIE 0355, Fiber Optics: Short-Haul and Long-Haul Measurements and Applications I, (22 March 1983); doi: 10.1117/12.934006; https://doi.org/10.1117/12.934006
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