RECYCLED-CARRIER MODULATION

摘要

An optical modulation apparatus for modulating an electromagnetic (e.g., radio frequency (RF)) signal onto an optical carrier signal may use carrier recycling to increase modulation efficiency. Such an arrangement may be implemented, e.g., using a Fabry-Perot topology and/or using a travelling-wave modulator.

主权项

1. An apparatus for modulating an optical carrier, the apparatus including:
a modulator configured to modulate a radio-frequency (RF) signal from an RF input of the modulator onto an optical carrier signal from an optical Input of the modulator to generate a modulated signal; and demultiplexing arrangement configured to demultiplex at least a portion of the optical carrier signal from the modulated signal and to feedback the at least a portion of the optical carrier signal to the optical input of the modulator.