High Reflectivity Measurement Based on the Intracavity Loss Scanning of Ring-Down Cavity

Zhongzhou Tian; Xing He; Shuai Wang; Ping Yang; Bing Xu

doi:10.3788/LOP220640

Laser & Optoelectronics Progress, Volume. 60, Issue 7, 0712002(2023)

High Reflectivity Measurement Based on the Intracavity Loss Scanning of Ring-Down Cavity

Zhongzhou Tian^1,2,3, Xing He^1,2,3、*, Shuai Wang^1,2,3, Ping Yang^1,2,3, and Bing Xu^1,2,3、**

Author Affiliations

¹Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu 610209, Sichuan, China

²Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, Sichuan, China

³University of Chinese Academy of Sciences, Beijing 100049, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(10)

Fig. 1. Schematic of optical cavity ring-down system

Download full size

Fig. 2. Schematic diagram of the optical cavity ring-down technique. (a) Initial cavity; (b) measured cavity

Download full size

Fig. 3. Relationship between cavity loss value and tilt misalignment angle of cavity mirror M₂

Download full size

Fig. 4. Schematic of initial cavity experimental device

Download full size

Fig. 5. Schematic of measured cavity experimental device

Download full size

Fig. 6. Ring-down time distribution of measured cavity mirror M₂at different tilt angles

Download full size

Fig. 7. Comparison of repeated experimental results under signal peak standard and ring-down time standard

Download full size

Table 1. Comparison of two cavity mirror states in fundamental transverse mode
View table
Table 1. Comparison of two cavity mirror states in fundamental transverse mode
Mirror position M₁ /（°） M₂ /（°） $τ$ /μs δ /10^-6
horizontal vertical horizontal vertical
Position 1
Position 2
0 0 0 0 1.259±0.010 1427
0.01^▲ 0.0025^▲ -0.0175^▲ 0.0175^▲ 1.434±0.007 1253

Table 2. Experimental results of high reflectivity repeatability measurement under two standards

View table

Table 2. Experimental results of high reflectivity repeatability measurement under two standards

Number of experiments	Signal peak standard			Ring-down time standard
Number of experiments	Initial cavity ring-down time /μs	Measured cavity ring-down time /μs	Reflectance of sample R_x /%	Initial cavity ring-down time /μs	Measured cavity ring-down time /μs	Reflectance of sample R_x /%
1	1.760±0.008	0.967±0.005	99.8991	1.843±0.009	1.063±0.005	99.9138
2	1.835±0.014	0.958±0.006	99.8920	1.842±0.013	1.059±0.008	99.9131
3	1.603±0.012	1.009±0.008	99.9219	1.765±0.011	1.039±0.008	99.9158
4	1.735±0.012	0.920±0.004	99.8894	1.818±0.012	1.058±0.005	99.9144
5	1.506±0.019	0.940±0.006	99.9134	2.074±0.019	1.145±0.005	99.9153
6	1.648±0.010	0.965±0.003	99.9070	1.907±0.011	1.089±0.006	99.9147

Table 3. Experimental system parameters
View table
Table 3. Experimental system parameters
Experimental system parameter Parameter value
R /% ≈ 99.882
R₃ /% ≈ 99.914
ΔR/R ≈ 9.6042×10^-6
ΔL/L ≈ 0.0015
Δτ₂/τ₂ ≈ 0.0047

Tools

Get Citation

Copy Citation Text

Zhongzhou Tian, Xing He, Shuai Wang, Ping Yang, Bing Xu. High Reflectivity Measurement Based on the Intracavity Loss Scanning of Ring-Down Cavity[J]. Laser & Optoelectronics Progress, 2023, 60(7): 0712002

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites