Affiliation:
1. Key Lab of Ultra-precision Intelligent Instrumentation (Harbin Institute of Technology),
2. Key Laboratory of Non-destructive Testing and Monitoring Technology for High-speed Transport Facilities (Nanjing University of Aeronautics and Astronautics)
Abstract
With the developments of the tunable laser source (TLS), there are increasing demands for high-resolution dynamic wavelength calibration in recent years. Considering mutual constraints between wide measurement range and high calibration resolution, we propose a dynamic wavelength calibration method based on an auxiliary Mach-Zehnder interferometer (MZI) and the synchrosqueezed wavelet transform (SSWT). Our proposed method can achieve a calibration resolution of 5 fm and a tuning range of 10 nm. Moreover, the measurement range and spatial resolution of the optical frequency domain reflectometer (OFDR) system are improved to ∼80 m and ∼mm, respectively. Our proposed approach can substantially reduce the subtle spectrum distortion (tens of fm) in coherent optical spectrum analyzer (COSA) systems.
Funder
National Natural Science Foundation of China
Shenzhen Municipal Science and Technology Innovation Council
China Postdoctoral Science Foundation
Young Elite Scientist Sponsorship Program by CAST
Special Funds for the Major Projects of Guangdong Education Department for Foundation Research and Applied Research
Basic and Applied Basic Research Foundation of Guangdong Province
State Key Laboratory of Information Photonics and Optical Communications
Natural Science Foundation of Guangdong Province
The Open Projects Foundation of State Key Laboratory of Optical Fiber and Cable Manufacture Technology
Science, Technology and Innovation Commission of Shenzhen Municipality
Beijing University of Posts and Telecommunications
Subject
Atomic and Molecular Physics, and Optics
Cited by
6 articles.
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