Recycled carrier modulation in compound resonator configurations

摘要

An optical modulation apparatus for modulating an electromagnetic (e.g., radio frequency (RF)) signal onto an optical carrier signal may be arranged to feed back at least a portion of the optical carrier signal, while excluding first-order sidebands, which may help increase modulation efficiency and improve output power, while retaining high modulation bandwidth. Such arrangements may be implemented, for example, using a Fabry-Perot resonator or a ring resonator in combination with a Mach-Zehnder interferometer or a Michelson interferometer.

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 an optical apparatus configured to feed back to the optical input of the modulator at least a portion of the optical carrier and even-order sideband components of the modulated signal to the optical input of the modulator and to not feed back the odd-order sideband components of the modulated signal.