Bidirectional optical communication system
First Claim
1. A bidirectional optical communication system comprising,means for producing local oscillator light,means for producing a demodulated signal in accordance with the combination of signal light received from an optical fiber line and said local oscillator light,means for producing a transmitting signal light, andan optical combiner for performing said combination and for feeding said transmitting signal light into said optical fiber line.
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Accused Products
Abstract
In a bidirectional optical communication system, an optical combiner is included to function not only as a combiner in which receiving signal light and local oscillator light are combined to produce an intermediate frequency signal but also as a divider in which the receiving signal light and transmitting signal light are divided so that parts to be used are decreased in number thereby decreasing the manufacturing cost and size thereof.
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Citations
5 Claims
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1. A bidirectional optical communication system comprising,
means for producing local oscillator light, means for producing a demodulated signal in accordance with the combination of signal light received from an optical fiber line and said local oscillator light, means for producing a transmitting signal light, and an optical combiner for performing said combination and for feeding said transmitting signal light into said optical fiber line.
Specification