TY - JOUR
T1 - Broadband Optoelectronic Frequency Response Measurement Utilizing Frequency Conversion
AU - Xue, Min
AU - Lv, Minghui
AU - Wang, Qi
AU - Zhu, Beibei
AU - Yu, Changyuan
AU - Pan, Shilong
N1 - Funding Information:
Manuscript received November 25, 2020; revised April 25, 2021; accepted May 3, 2021. Date of publication May 19, 2021; date of current version May 27, 2021. This work was supported in part by the National Key Research and Development Program of China under Grant 2017YFF0106900, in part by the National Natural Science Foundation of China under Grant 62071226 and Grant 61971372, in part by the Hong Kong Scholar Program under Grant G-YZ2S, in part by the Jiangsu Provincial Program for High-level Talents in Six Areas under Grant DZXX-034, in part by the Postgraduate Research and Practice Innovation Program of Jiangsu Province under Grant KYLX16_0367, and in part by HK RGC GRF under Grant 15200718. The Associate Editor coordinating the review process was Zheng Liu. (Corresponding author: Shilong Pan.) Min Xue is with the Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China, and also with the Department of Electronic and Information Engineering, Hong Kong Polytechnic University, Hong Kong 999077.
Publisher Copyright:
© 2021 IEEE.
PY - 2021/5
Y1 - 2021/5
N2 - A broadband optoelectronic (O/E) frequency response measurement method utilizing photonics-based frequency conversion is proposed and experimentally demonstrated. It is characterized by a sub-kilohertz frequency resolution and a doubled measurement bandwidth compared with the RF frequency sweeping range and the working bandwidth. A carrier-frequency-shifted optical double-sideband (ODSB) signal is produced by employing a dual-drive Mach-Zehnder modulator (DD-MZM) and stimulated Brillouin scattering (SBS). Then, a photodetector (PD) under test receives and converts the optical signal into a photocurrent. By detecting the frequency up- A nd down-conversion components generated by the two first-order sidebands and the optical carrier, the O/E frequency responses in the low- A nd high-frequency regions are achieved. After stitching the two measured responses together, an O/E frequency response with a frequency range that is twice the bandwidth of the input microwave signal is obtained. In an experiment, the O/E frequency response of a commercial high-speed PD is precisely characterized with a frequency resolution up to 5.55 MHz. A frequency bandwidth of 66.8 GHz (0.1-66.9 GHz) is achieved by using a 25-GHz DD-MZM. The measured O/E frequency response is coincident with that measured by a commercial instrument.
AB - A broadband optoelectronic (O/E) frequency response measurement method utilizing photonics-based frequency conversion is proposed and experimentally demonstrated. It is characterized by a sub-kilohertz frequency resolution and a doubled measurement bandwidth compared with the RF frequency sweeping range and the working bandwidth. A carrier-frequency-shifted optical double-sideband (ODSB) signal is produced by employing a dual-drive Mach-Zehnder modulator (DD-MZM) and stimulated Brillouin scattering (SBS). Then, a photodetector (PD) under test receives and converts the optical signal into a photocurrent. By detecting the frequency up- A nd down-conversion components generated by the two first-order sidebands and the optical carrier, the O/E frequency responses in the low- A nd high-frequency regions are achieved. After stitching the two measured responses together, an O/E frequency response with a frequency range that is twice the bandwidth of the input microwave signal is obtained. In an experiment, the O/E frequency response of a commercial high-speed PD is precisely characterized with a frequency resolution up to 5.55 MHz. A frequency bandwidth of 66.8 GHz (0.1-66.9 GHz) is achieved by using a 25-GHz DD-MZM. The measured O/E frequency response is coincident with that measured by a commercial instrument.
KW - Microwave photonics (MWP)
KW - optical variables measurement
KW - optoelectronic (O/E) frequency response measurement
KW - photonics-based frequency conversion
KW - stimulated Brillouin scattering (SBS)
UR - http://www.scopus.com/inward/record.url?scp=85106669638&partnerID=8YFLogxK
U2 - 10.1109/TIM.2021.3079562
DO - 10.1109/TIM.2021.3079562
M3 - Journal article
AN - SCOPUS:85106669638
SN - 0018-9456
VL - 70
JO - IEEE Transactions on Instrumentation and Measurement
JF - IEEE Transactions on Instrumentation and Measurement
M1 - 9436049
ER -