TY - GEN
T1 - Frequency-Tunable Active Mode-Locked Optoelectronic Oscillator Incorporating an Electrically-Switchable Silicon Photonic Micro-Ring Resonator
AU - Liu, Yaming
AU - Jiang, Yushu
AU - Wang, Bin
AU - Zhang, Weifeng
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - We propose and experimentally demonstrate a frequency-tunable active mode-locked optoelectronic oscillator (AML-OEO) for microwave pulse generation. The proposed AML-OEO has a dual-loop configuration based on phase modulation to intensity modulation conversion. In the loops, an electrically-switchable silicon photonic micro-ring resonator (MRR) with a top-placed metallic micro-heater and a lateral PN junction incorporated in the waveguide is used to play two-fold key functions. First, the MRR is employed as a narrow optical notch filter for frequency selection in the OEO implementation, and with the use of the top-placed micro-heater, the generated microwave frequency is highly tunable in a large range based on the thermal optics; secondly, the MRR is leveraged to realize the mode locking by performing the periodically high-speed gain modulation based on the lateral PN junction. An experiment is performed, and microwave pulses with a period of 1.08 μ and tunable center frequencies from 6 GHz to 18 GHz are experimentally generated. The proposed AML-OEO provides a flexible tunability and a compact structure, which is promising to be widely used in high-speed pulsed doppler radar and multi-carrier communication systems.
AB - We propose and experimentally demonstrate a frequency-tunable active mode-locked optoelectronic oscillator (AML-OEO) for microwave pulse generation. The proposed AML-OEO has a dual-loop configuration based on phase modulation to intensity modulation conversion. In the loops, an electrically-switchable silicon photonic micro-ring resonator (MRR) with a top-placed metallic micro-heater and a lateral PN junction incorporated in the waveguide is used to play two-fold key functions. First, the MRR is employed as a narrow optical notch filter for frequency selection in the OEO implementation, and with the use of the top-placed micro-heater, the generated microwave frequency is highly tunable in a large range based on the thermal optics; secondly, the MRR is leveraged to realize the mode locking by performing the periodically high-speed gain modulation based on the lateral PN junction. An experiment is performed, and microwave pulses with a period of 1.08 μ and tunable center frequencies from 6 GHz to 18 GHz are experimentally generated. The proposed AML-OEO provides a flexible tunability and a compact structure, which is promising to be widely used in high-speed pulsed doppler radar and multi-carrier communication systems.
KW - Active mode locking
KW - Micro-ring resonator
KW - microwave pulse generation
KW - optoelectronic oscillator
UR - http://www.scopus.com/inward/record.url?scp=85183306336&partnerID=8YFLogxK
U2 - 10.1109/ACP/POEM59049.2023.10369085
DO - 10.1109/ACP/POEM59049.2023.10369085
M3 - Conference contribution
AN - SCOPUS:85183306336
T3 - 2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023
BT - 2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023
Y2 - 4 November 2023 through 7 November 2023
ER -