Accurate Detection Method of Phase Retardation Based on Cascade Modulation with Phase Compensation

Minjuan Zhang; Chunyang Li; Jinhua Li; Kun Yang

doi:10.3788/LOP212873

Journals >Laser & Optoelectronics Progress >Volume 60 >Issue 1 >Page 0112001 > Article

Laser & Optoelectronics Progress
Vol. 60, Issue 1, 0112001 (2023)

Accurate Detection Method of Phase Retardation Based on Cascade Modulation with Phase Compensation

Minjuan Zhang^1、2、*, Chunyang Li^1、2, Jinhua Li^1、2, and Kun Yang^1、2

Author Affiliations

¹School of Information and Communication Engineering, North University of China, Taiyuan 030051, Shanxi, China

²Engineering and Technology Research Center of Shanxi Province for Optical-Electric Information and Instrument, North University of China, Taiyuan 030051, Shanxi, China

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DOI: 10.3788/LOP212873 Cite this Article Set citation alerts

Minjuan Zhang, Chunyang Li, Jinhua Li, Kun Yang. Accurate Detection Method of Phase Retardation Based on Cascade Modulation with Phase Compensation[J]. Laser & Optoelectronics Progress, 2023, 60(1): 0112001 Copy Citation Text

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Fig. 1. Block diagram of measurement system for phase retardation based on cascade modulation with phase compensation

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Fig. 2. Soleil-Barbinet phase compensator

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Fig. 3. Data processing realization block diagram

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Fig. 4. Physical diagram of measurement system

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Fig. 5. Measurement results of phase retardation and absolute error. (a) Half-wave plate; (b) quarter-wave plate

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Number	1	2	3	4	5	6	Mean value
$L_{0}$	4.785	4.786	4.773	4.882	4.880	4.786	4.815
$L_{2 π}$	18.355	18.352	18.361	18.356	18.359	18.352	18.355
$∆ L_{2 π}$	13.570	13.566	13.588	13.474	13.479	13.566	13.540

Table 1. Calibration results of Soleil-Barbinet compensator

n	$∆ L_{2 π}$ /mm	Half-wave plate				Quarter-wave plate
n	$∆ L_{2 π}$ /mm	$∆ L$ /mm	$β_{S}$ /（^o）	Absolute error /（^o）	Relative error /%	$∆ L$ /mm	$β_{S}$ /（^o）	Absolute error /（^o）	Relative error /%
1	13.540	6.719	178.644	1.356	0.753	3.360	89.335	0.665	0.739
2		6.716	178.564	1.436	0.798	3.359	89.309	0.691	0.768
3		6.721	178.697	1.303	0.724	3.361	89.362	0.638	0.709
4		6.715	178.538	1.462	0.812	3.360	89.335	0.665	0.739
5		6.717	178.591	1.409	0.783	3.359	89.309	0.691	0.768
6		6.722	178.724	1.276	0.709	3.360	89.335	0.665	0.739
7		6.718	178.617	1.383	0.768	3.358	89.282	0.718	0.798
8		6.715	178.538	1.462	0.812	3.357	89.256	0.744	0.827
9		6.723	178.750	1.250	0.694	3.361	89.362	0.638	0.709
10		6.721	178.697	1.303	0.724	3.356	89.229	0.771	0.857
11		6.717	178.591	1.409	0.783	3.359	89.309	0.691	0.768

Table 2. Measurement results of half-wave plate and quarter-wave plate

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