What is an Optical Cellular Repeater

There has been remarkable growth in world's cellular communications market, need for services that extend to locations that were previously blind spots for pagers and cellular phones. To address this need the advantages of systems using analog optical transmission have been recognized in terms of flexibility in cable laying design, lower costs of installation, and broader service area.

An optical repeater is used in fiber optic communication. Basically, it is used to regenerate an optical signal. Loss occurs in communication due to attenuation. And if you use this repeater, then it will extend the reach of an optical communication link. To correct distortion, optical repeater converts an optical signal into an electrical signal. It processes the electrical signal and transfer an optical signal in the end. One optical repeater is required for each wavelength. An optical repeater can convert wavelength for WDM environment. Using an optical repeater, it can be possible to convert a cellular signal into a single mode fiber.

An optical repeater system has been developed that provides pager and cellular phone services in an underground parking garage, where such services were unavailable. The transmitter uses the coupler method which reduces the cost of equipment and diminishes the number of fibers. Use of a low-noise, low-distortion 1310nm and 1550nm distributed feedback laser provides high system performance. 

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