Electro-optical device, laser device, and electro-optical dual-comb generator for active control of dispersive wave

A laser device comprising:

• a pulse laser source configured to emit a pulse wave;
• a waveguide configured to receive the pulse wave as an incident wave and to generate a dispersive wave of which a center wavelength is different from a center wavelength of the incident wave;
• and
• a wavelength modulator disposed along the waveguide and configured to absorb the incident wave propagating through the waveguide,
• wherein, as the wavelength modulator absorbs the incident wave, the center wavelength of the dispersive wave changes.

An electro-optical dual-comb generator comprising:

• a first laser device configured to generate a first dispersive wave;
• and
• a second laser device configured to generate a second dispersive wave,
• wherein the first laser device comprises:
• a first pulse laser source configured to emit a first pulse wave in a first time period;
• a first waveguide configured to receive the first pulse wave as a first incident wave and to generate the first dispersive wave of which a center wavelength is different from a center wavelength of the first incident wave;
• and
• a first wavelength modulator disposed along the first waveguide and configured to absorb the first incident wave propagating through the first waveguide, and
• the second laser device comprises:
• a second pulse laser source configured to emit a second pulse wave in a second time period;
• a second waveguide configured to receive the second pulse wave as a second incident wave and to generate the second dispersive wave of which a center wavelength is different from a center wavelength of the second incident wave;
• and
• a second wavelength modulator disposed along the second waveguide and configured to absorb the second incident wave propagating through the second waveguide, and,
• as the first wavelength modulator absorbs the first incident wave, a center wavelength of the first dispersive wave changes, and,
• as the second wavelength modulator absorbs the second incident wave, a center wavelength of the second dispersive wave changes.