Modulating apparatus

摘要

A modulating apparatus includes a branch that branches input light; a first modulating unit that modulates the phase of a first branch obtained by the branch; a second modulating unit that modulates a second branch obtained by the branch; a third modulating unit that is connected in series to the first modulating unit, transmits the first branch without branching the first branch, modulates the phase of light transmitted by controlling a refractive index of the light transmitted; a fourth modulating unit that is connected in series to the second modulating unit, transmits the second branch without branching the second branch, and modulates the phase of a light transmitted by controlling a refractive index of the light transmitted; and a coupler that couples the first branch modulated by the first and the third modulating units and the second branch modulated by the second and the fourth modulating units, at different intensities.

主权项

1. A modulating apparatus comprising:
a branch that branches a light beam input thereinto; a first modulating unit that modulates the phase of a first light beam of light beams branched by the branch; a second modulating unit that modulates a second light beam different from the first light beam of the light beams branched by the branch; a third modulating unit that is connected in series to the first modulating unit and transmits the first light beam without branching the first light beam, the third modulating unit modulating the phase of a light beam transmitted thereby by controlling a refractive index of the light beam transmitted thereby; a fourth modulating unit that is connected in series to the second modulating unit and transmits the second light beam without branching the second light beam, the fourth modulating unit modulating the phase of a light beam transmitted thereby by controlling a refractive index of the light beam transmitted thereby; and a coupler that couples the first light beam of which phase is modulated by the first and the third modulating units and the second light beam of which phase is modulated by the second and the fourth modulating units, at different intensities.