公开(公告)号：US20180115367A1

公开(公告)日：2018-04-26

申请号：US15299475

申请日：2016-10-21

Applicant: Industrial Technology Research Institute

Inventor： Che-Hao Li

IPC: H04B10/2575 ,  H04B10/50 ,  H04B10/516

CPC classification number: H04B10/25752

Abstract: The disclosure is directed to a radio over fiber (RoF) network node, base station, and communication system. In one of the exemplary embodiments, the disclosure is directed to a radio over fiber (RoF) network node which includes not limited to: a laser source which transmits a first laser beam having a first wavelength; a first Electroabsorption Modulated Laser (EML) which modulates a first electrical signal into a second laser beam that is modulated and has a second wavelength; and a first optical coupler which is coupled to the laser source and the EML and transmits an output laser beam having a first carrier frequency which is determined based on a difference between the first wavelength and the second wavelength.

公开(公告)号：US20240346351A1

公开(公告)日：2024-10-17

申请号：US18088807

申请日：2022-12-27

Applicant: Industrial Technology Research Institute

Inventor： Chang-Sheng Chen ,  Che-Hao Li ,  Cheng-Hua Tsai ,  Meng-Hsuan Chen ,  Wei Chaun Yu ,  Meng-Sheng Chen

IPC: G06N10/40 ,  H05K1/14 ,  H10N60/81 ,  H10N69/00

CPC classification number: G06N10/40 ,  H05K1/147 ,  H10N60/81 ,  H10N69/00

Abstract: The disclosure provides a quantum device and a microwave device. The quantum device includes a first partition, a second partition, an upper circuit board, a lower circuit board and a flexible circuit. The second partition is arranged below the first partition. The first partition and the second partition are used to define an ultra-low temperature chamber of the quantum device. The upper circuit board, the lower circuit board and the flexible circuit are arranged in the ultra-low temperature chamber. The upper circuit board is disposed on a lower surface of the first partition. The lower circuit board is disposed on an upper surface of the second partition. The flexible circuit is electrically connected between the upper circuit board and the lower circuit board to provide multiple signal paths for mutual signal transmission between the upper circuit board and the lower circuit board.

公开(公告)号：US20250139478A1

公开(公告)日：2025-05-01

申请号：US18432057

申请日：2024-02-05

Applicant: Industrial Technology Research Institute

Inventor： Che-Hao Li ,  Wei Chaun Yu ,  Po-Sheng Chang ,  Meng-Hsuan Chen

IPC: H04B10/516 ,  H04B10/532 ,  H04J14/02 ,  H04J14/06

Abstract: A control signal transmission device for a quantum computer is provided. The control signal transmission device includes a laser source, a digital-to-analog converter (DAC), an electro-optic modulation circuit, an optical fiber, an optic-electro demodulation circuit and a plurality of qubits. The laser source provides a light. The DAC provides a plurality of first control signals. The electro-optic modulation circuit integrates the corresponding first control signals into the light to generate an optical signal, and provides the optical signal to the optical fiber. The optic-electro demodulation circuit converts and splits the optical signal into a plurality of second control signals. The optic-electro demodulation circuit transmits the second control signals to the corresponding qubits. The qubits are controlled by the corresponding second control signals. An ambient temperature set by the optic-electro demodulation circuit and the qubits is much lower than a preset temperature value.

公开(公告)号：US10284295B2

公开(公告)日：2019-05-07

申请号：US15299475

申请日：2016-10-21

Applicant: Industrial Technology Research Institute

Inventor： Che-Hao Li

IPC: H04B10/2575

Abstract: The disclosure is directed to a radio over fiber (RoF) network node, base station, and communication system. In one of the exemplary embodiments, the disclosure is directed to a radio over fiber (RoF) network node which includes not limited to: a laser source which transmits a first laser beam having a first wavelength; a first Electroabsorption Modulated Laser (EML) which modulates a first electrical signal into a second laser beam that is modulated and has a second wavelength; and a first optical coupler which is coupled to the laser source and the EML and transmits an output laser beam having a first carrier frequency which is determined based on a difference between the first wavelength and the second wavelength.