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US 2018/0294888 A1Published application
Optical transmitter and optical transmission method
AssigneeFujitsu Optical Components Limited
InventorsSukeyuki IWATA, Toshiki TANAKA, Masato NISHIHARA, Naoki KUWATA
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Abstract
An optical transmitter includes an optical modulator configured to modulate light from a light source; and a processor configured to generate a drive signal that is input into the optical modulator. The processor inserts a bias control signal amplitude-modulated at a low frequency, into an analog signal at fixed intervals, to generate the drive signal.
Claims19
An optical transmitter comprising:
- an optical modulator configured to modulate light from a light source;
- and
- a processor configured to generate a drive signal that is input into the optical modulator,
- wherein the processor inserts a bias control signal amplitude-modulated with a low-frequency signal, into an analog signal at fixed intervals, to generate the drive signal.
1 more element
An optical transmission method, executed by an optical transmitter, the method comprising:
- generating an analog modulation signal by inserting a bias control signal amplitude-modulated with a low-frequency signal, into an analog signal at fixed intervals;
- and
- inputting the analog modulation signal into an optical modulator, to modulate light to be output from a light source.
Dependencies are inferred from the claim text.