TY - JOUR
T1 - Broadband instantaneous multi-frequency measurement based on chirped pulse compression
AU - Zhu, Beibei
AU - Xue, Min
AU - Yu, Changyuan
AU - Pan, Shilong
N1 - Funding Information:
This work was supported in part by the Postgraduate Research and Practice Innovation Program of Jiangsu Province (No. KYLX16_0367), the National Natural Science Foundation of China (Nos. 62071226 and 61971372), the Hong Kong Scholar Program (No. G-YZ2S), and HK RGC GRF (No. 15200718).
Publisher Copyright:
© 2021 Chinese Optics Letters.
PY - 2021/10
Y1 - 2021/10
N2 - A broadband instantaneous multi-frequency measurement system based on chirped pulse compression, which potentially has a sub-megahertz (MHz) accuracy and a hundred-gigahertz (GHz) measurement range, is demonstrated. A signal under- test (SUT) is converted into a carrier-suppressed double-sideband (CS-DSB) signal, which is then combined with an optical linearly frequency-modulated signal having the sweeping range covering the +1st-order sideband of the CSDSB signal. With photo detection, low-pass filtering, and pulse compression, accurate frequencies of the SUT are obtained via locating the correlation peaks. In the experiment, single- and multi-frequency measurements with a measurement range from 3 to 18 GHz and a measurement accuracy of <±100 MHz are achieved.
AB - A broadband instantaneous multi-frequency measurement system based on chirped pulse compression, which potentially has a sub-megahertz (MHz) accuracy and a hundred-gigahertz (GHz) measurement range, is demonstrated. A signal under- test (SUT) is converted into a carrier-suppressed double-sideband (CS-DSB) signal, which is then combined with an optical linearly frequency-modulated signal having the sweeping range covering the +1st-order sideband of the CSDSB signal. With photo detection, low-pass filtering, and pulse compression, accurate frequencies of the SUT are obtained via locating the correlation peaks. In the experiment, single- and multi-frequency measurements with a measurement range from 3 to 18 GHz and a measurement accuracy of <±100 MHz are achieved.
KW - Chirped pulse compression
KW - Frequency-to-time mapping
KW - Instantaneous frequency measurement
KW - Microwave photonics
UR - http://www.scopus.com/inward/record.url?scp=85113472420&partnerID=8YFLogxK
U2 - 10.3788/COL202119.101202
DO - 10.3788/COL202119.101202
M3 - Journal article
AN - SCOPUS:85113472420
SN - 1671-7694
VL - 19
SP - 1
EP - 5
JO - Chinese Optics Letters
JF - Chinese Optics Letters
IS - 10
M1 - 101202
ER -