US 11,754,864 B2
Electro-optical intensity modulation apparatus, chip and system
Hung-Pin Chung, Taipei (TW); Tsung-Yeh Ho, Taipei (TW); Kuang-Hsu Huang, Taipei (TW); Sung-Lin Yang, Taipei (TW); Yin-Wu Chen, Taipei (TW); and Hou-Chung Hung, Taipei (TW)
Assigned to Polaris Photonics Limited, Taipei (TW)
Filed by POLARIS PHOTONICS LIMITED, Taipei (TW)
Filed on May 25, 2021, as Appl. No. 17/329,564.
Claims priority of application No. 110110094 (TW), filed on Mar. 19, 2021.
Prior Publication US 2022/0299802 A1, Sep. 22, 2022
Int. Cl. G02F 1/035 (2006.01); G02F 1/225 (2006.01)
CPC G02F 1/0356 (2013.01) [G02F 1/0353 (2013.01); G02F 1/225 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electro-optical intensity modulation apparatus, comprising:
a non-linear optical substrate, provided with a first branch waveguide, a second branch waveguide, a first channel waveguide and a second channel waveguide thereon, wherein the first channel waveguide and the second channel waveguide are disposed between the first branch waveguide and the second branch waveguide, and the first channel waveguide and the second channel waveguide are branched from the first branch waveguide and converged at the second branch waveguide; and
a plurality of electrodes, disposed on an area between the first branch waveguide and the second branch waveguide, so as to make the first channel waveguide, the second channel waveguide and the electrodes form a radio frequency (RF) conversion push-pull electro-optic phase modulation unit, a push-pull electro-optic bias control unit, two sets of independent polarization rotation control units and a dual-channel relative light intensity ratio adjustment unit, which are sequentially connected.