Instantaneous Frequency Measurements Based on a Dual-Path Imbalanced Mach-Zehnder Interferometer

Cong Li; Jianming Zhang; Zhe Han

doi:10.3788/LOP222254

Laser & Optoelectronics Progress, Volume. 60, Issue 17, 1712001(2023)

Instantaneous Frequency Measurements Based on a Dual-Path Imbalanced Mach-Zehnder Interferometer

Cong Li^*, Jianming Zhang, and Zhe Han

Author Affiliations

Wuhan Binhu Electronic Limited Liability Company, Wuhan 430205, Hubei , China

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Figures & Tables(6)

Fig. 1. Schematic diagram of IFM system based on dual-path-imbalanced MZI

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Fig. 2. Gain spectra of phase modulation link (τ₁=100 ps)

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Fig. 3. Gain spectra of phase modulation link (τ₂=375 ps)

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Fig. 4. Relationship between f_ACF and f of the link based on dual-path-imbalanced MZI

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Fig. 5. Instantaneous frequency measurement system. (a) Measurement result; (b) error

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Table 1. Comparison between experiment and theory of gain spectra of path 2 (τ₂=375 ps)

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Table 1. Comparison between experiment and theory of gain spectra of path 2 (τ₂=375 ps)

Peak response frequency /GHz		Null response frequency /GHz		3 dB bandwidth/ GHz
Theory	Experiment	Theory	Experiment	Theory	Experiment
1.33	1.12	2.67	2.66	1.30	1.28
4.00	3.88	5.33	5.33	/	/
6.67	6.68	8.00	7.99	/	/
9.33	9.35	10.67	10.65	/	/
12.00	12.14	13.33	13.31	/	/
14.67	14.52	16.00	15.98	/	/
17.33	17.23	/	/	/	/

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Cong Li, Jianming Zhang, Zhe Han. Instantaneous Frequency Measurements Based on a Dual-Path Imbalanced Mach-Zehnder Interferometer[J]. Laser & Optoelectronics Progress, 2023, 60(17): 1712001

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Paper Information

Category: Instrumentation, Measurement and Metrology

Received: Aug. 10, 2022

Accepted: Aug. 25, 2022

Published Online: Sep. 1, 2023

The Author Email: Li Cong (muzixiaozong2003@163.com)

DOI:10.3788/LOP222254

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Comparison between experiment and theory of gain spectra of path 2 (τ2=375 ps)

Table 1. Comparison between experiment and theory of gain spectra of path 2 (τ2=375 ps)

Table 1. Comparison between experiment and theory of gain spectra of path 2 (τ₂=375 ps)

Table 1. Comparison between experiment and theory of gain spectra of path 2 (τ₂=375 ps)