Switchable instantaneous frequency measurement by optical power monitoring based on DP-QPSK modulator

doi:10.1088/1674-1056/ac40ff

Abstract We propose and analyze an instantaneous frequency measurement system by using optical power monitoring technique with improved resolution. The primary component adopted in the proposal is a dual-polarization quadrature phase shift keying (DP-QPSK) modulator which is used to modulate the microwave signal that has a designed time delay and phase shifting. The generated optical signal is sent to polarization beam splitter (PBS) in DP-QPSK modulator. Owing to the complementary transmission nature of polarization interference introduced by PBS, the frequency information is converted into the optical power and the relationship between the amplitude comparison function (ACF) and microwave frequency to be measured is established. Thus, the frequency of the microwave signal can be easily measured through monitoring the optical powers of the two output ports of the PBS. Furthermore, by adjusting the direct current (DC) biases of the DP-QPSK modulator instead of changing the electrical delay, the measurement range and resolution can be switched. In this paper, the basic principle of the instantaneous frequency measurement system is derived in detail, and simulation has been performed to investigate the resolution, the measurement range, and the influence of imperfection devices. The proposed scheme is wavelength-independent and its measurement range is switchable, which can avoid the laser wavelength drifting problem and thus greatly increasing the system flexibility.

Keywords: microwave photonics DP-QPSK modulator instantaneous frequency measurement

Received: 23 June 2021
Revised: 06 October 2021
Accepted manuscript online: 08 December 2021

PACS:	42.40.My	(Applications)
	42.79.-e	(Optical elements, devices, and systems)
	42.81.-i	(Fiber optics)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61801017, U2006217, 62005011, and 61620106014), Beijing Municipal Natural Science Foundation (Grant No. 4212009) and the Fundamental Research Funds for the Central Universities (Grant No. 2020JBM010).

Corresponding Authors: Bei-Lei Wu
E-mail: wubeilei@bjtu.edu.cn

Cite this article:

Yu-Lin Zhu(朱昱琳), Bei-Lei Wu(武蓓蕾), Jing Li(李晶), Mu-Guang Wang(王目光), Shi-Ying Xiao(肖世莹), and Feng-Ping Yan(延凤平) Switchable instantaneous frequency measurement by optical power monitoring based on DP-QPSK modulator 2022 Chin. Phys. B 31 044202

[1] Pan S, Zhu D and Zhang F 2014 Transactions of Nanjing University of Aeronautics and Astronautics 31 219
[2] East P W 2012 IET Radar Sonar Navig. 6 112
[3] Seeds A J and Williams K J 2007 J. Lightwave Technol. 24 4628
[4] Winnall S T, Lindsay A C, Austin M W, Canning J and Mitchell A 2006 IEEE Trans. Microw. Theory Tech. 54 868
[5] Wang W S, Davis R L, Jung T J, Lodenkamper R, Lembo L J, Brock J C and Wu M C 2001 IEEE Trans. Microw. Theory Tech. 49 1996
[6] Nguyen L V T 2009 IEEE Photon. Technol. Lett. 21 642
[7] Nguyen T A, Chan E H W and Minasian R A 2014 Opt. Lett. 39 2419
[8] Li W, Zhu N H and Wang L X 2012 IEEE Photon. J. 4 427
[9] Zhang H L and Pan S L 2013 IEEE Microw. Wirel. Compon. Lett. 23 623
[10] Li J Q, Fu S N, Xu K, Zhou J Q, Shum P, Wu J and Lin J T 2009 Opt. Lett. 34 743
[11] Hunter D B and Nguyen L V T 2006 IEEE Trans. Microw. Theory Tech. 54 900
[12] Li Z, Wang C, Li M, Chi H, Zhang X M and Yao J P 2011 IEEE Microw. Wirel. Compon. Lett. 21 52
[13] Dai J A, Xu K, Sun X Q, Niu J A, Lv Q A, Wu J A, Hong X B, Li W and Lin J T 2010 IEEE Photon. Technol. Lett. 22 1162
[14] Chi H, Zou X H and Yao J P 2008 IEEE Photon. Technol. Lett. 20 1249
[15] Feng D Q, Xie H, Qian L F, Bai Q H and Sun J Q 2015 Opt. Express 23 17613
[16] Zheng J Y, Wang H, Li W, Wang L X, Su T, Liu J G and Zhu N H 2014 Opt. Lett. 39 1366
[17] Chen Y and Yao J P 2020 Journal of Lightwave Technology 38 761

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