Optical communication system and optical receiver
AssigneeFujitsu Limited
InventorSadao Ibukuro
Life of this patent
Estimating the term…
Abstract
An optical transmitter transmits a data signal developing a specific spectrum at a predetermined frequency, while an optical receiver detects amplitude information on the spectrum included in the data signal to control the received data signal to a constant amplitude on the basis of the detected amplitude information. This can provide an optical communication system and an optical receiver capable of functioning well even if the optical S/N is in a poor condition.
Claims40
An optical communication system comprising:
- an optical transmitter for transmitting a data signal developing a specific spectrum at a predetermined frequency;
- and
- an optical receiver for detecting amplitude information on said spectrum included in said data signal transmitted from said optical transmitter to control said data signal to a constant amplitude on the basis of said amplitude information.
An optical receiver for receiving a data signal transmitted from an optical transmitter which is made to transmit a data signal developing a specific spectrum at a predetermined frequency, said optical receiver comprising:
- a signal identifying section for making a signal identification on said data signal;
- amplitude adjusting means for adjusting an amplitude of said data signal to be inputted to said signal identifying section;
- and
- control means for detecting amplitude information on said spectrum from said data signal to control said amplitude adjusting means on the basis of said amplitude information so that said amplitude of said data signal to be inputted to said signal identifying section becomes constant.
Dependencies are inferred from the claim text.