Abstract

This paper presents a simple photonic-assisted instantaneous microwave frequency measurement approach with an adjustable measurement range. In our scheme, different polarization processing is performed on the upper and the lower branches, and then the powers of the two branches are compared to obtain the amplitude comparison function (ACF), which provides the frequency-amplitude mapping. The measurement system is significantly simplified since only one polarization modulator (PolM) and one single laser source are required. In addition, our scheme achieves a larger ACF slope, which significantly increases the measurement resolution. In the simulation, a frequency measurement over the range of 3–42.8 GHz with measurement errors within $\pm 0.1\;{\rm GHz}$ is achieved by optimizing the dc bias voltage applied to the PolM and the polarization angle. This scheme provides a reference for measuring the unknown instantaneous frequency of the received signal from a radar system.

© 2020 Optical Society of America

Microwave photonics broadband unambiguous frequency measurement based on a Sagnac loop and a linear optical filter

Yinling Zhang, Tao Shang, Gufeng Li, Xiongchao Liu, Dan Chen, and Zhaokun Li
Appl. Opt. 61(17) 5090-5097 (2022)

Photonic microwave frequency measurement with a tunable range based on a dual-polarization modulator

Xiaoyan Li, Aijun Wen, Xiaoming Ma, Wei Chen, Yongsheng Gao, Wu Zhang, Zhaoyang Tu, and Shuiying Xiang
Appl. Opt. 55(31) 8727-8731 (2016)

Instantaneous microwave frequency measurement with single branch detection based on the birefringence effect

Wei Zhu, Jing Li, Li Pei, Tigang Ning, Jingjing Zheng, and Jianshuai Wang
Appl. Opt. 61(20) 5894-5901 (2022)

Photonic instantaneous microwave frequency measurement based on frequency-phase mapping with high precision

Jing Gao and Jianxin Ma
Appl. Opt. 62(32) 8578-8586 (2023)

Theoretical investigation of a photonic-assisted instantaneous frequency measurement with a tunable measurement range and resolution by adjusting the chirp parameter of an optical intensity modulator

Mohsen Ganjali, S. Esmail Hosseini, Kambiz Jamshidi, and Dirk Plettemeier
Appl. Opt. 58(36) 9990-9997 (2019)