A high-resolution displacement sensor based on multiple feedback effect of birefringence dual frequency lasers

2006 ◽  
Author(s):  
Wei Mao ◽  
Shulian Zhang
Keyword(s):  
High Resolution ◽  
Feedback Effect ◽  
Displacement Sensor ◽  
Dual Frequency

A Simple and High-Resolution POF Displacement Sensor Based on Face-Coupling Method

Measurement ◽  
2021 ◽  
pp. 110285
Author(s):  
Abdul Ghaffar ◽  
Qi Li ◽  
Shah Ali Haider ◽  
An Sun ◽  
Arnaldo G. Leal-Junior ◽  
...  
Keyword(s):  
High Resolution ◽  
Coupling Method ◽  
Displacement Sensor

scholarly journals Vernier spectrometer using counterpropagating soliton microcombs

Science ◽  
2019 ◽  
Vol 363 (6430) ◽  
pp. 965-968 ◽  
Author(s):  
Qi-Fan Yang ◽  
Boqiang Shen ◽  
Heming Wang ◽  
Minh Tran ◽  
Zhewei Zhang ◽  
...  
Keyword(s):  
High Resolution ◽  
Relative Frequency ◽  
Frequency Comb ◽  
Laser Frequency ◽  
Dual Frequency ◽  
Molecular Absorption ◽  
Laser Tuning ◽  
Technical Simplification

Determination of laser frequency with high resolution under continuous and abrupt tuning conditions is important for sensing, spectroscopy, and communications. We show that a single microresonator provides rapid and broadband measurement of optical frequencies with a relative frequency precision comparable to that of conventional dual-frequency comb systems. Dual-locked counterpropagating solitons having slightly different repetition rates were used to implement a vernier spectrometer, which enabled characterization of laser tuning rates as high as 10 terahertz per second, broadly step-tuned lasers, multiline laser spectra, and molecular absorption lines. Besides providing a considerable technical simplification through the dual-locked solitons and enhanced capability for measurement of arbitrarily tuned sources, our results reveal possibilities for chip-scale spectrometers that exceed the performance of tabletop grating and interferometer-based devices.

Signal processing of a high resolution and long-range displacement sensor

2012 ◽  
Author(s):  
N. Arora ◽  
L. Petit ◽  
M. U. Khan ◽  
F. Lamarque ◽  
C. Prelle
Keyword(s):  
Signal Processing ◽  
High Resolution ◽  
Long Range ◽  
Displacement Sensor
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