Terrestrial optical communication network of integrated fiber and free-space links which requires no electro-optical conversion between links

   
   

Optical signals are received from a free-space link by directing received light onto a plurality of microlenses and then directing light received through each of the microlenses into a respective single mode optical fiber (SMF). Light beams from the SMFs are combined into a single light beam in one SMF. The single light beam is amplified with a multi-wavelength fiber amplifier and attenuated with a variable optical attenuator. The power gain of the multi-wavelength fiber amplifier and the attenuation of the variable optical attenuator are controlled. The single light beam is directed into a fiber optic communication system that is optically coupled to the variable optical attenuator.

Las señales ópticas son recibidas de un acoplamiento del libre-espacio dirigiendo la luz recibida sobre una pluralidad de microlenses y después dirigiendo la luz recibida con cada uno de los microlenses en una fibra óptica respectiva del solo modo (SMF). Los rayos de luz del SMFs se combinan en un solo rayo de luz en un SMF. El solo rayo de luz se amplifica con un amplificador de la fibra de la multi-longitud de onda y se atenúa con un atenuador óptico variable. El aumento de la energía del amplificador de la fibra de la multi-longitud de onda y la atenuación del atenuador óptico variable son controlados. El solo rayo de luz se dirige en un sistema de comunicación óptico de la fibra que ópticamente se junte al atenuador óptico variable.

 
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