Design and Simulation of Optical Field in Quasi-Two-Dimensional Isotropic Laser Cooling

Xiao Zhang; Xin Wang; Wenli Wang; Yuan Sun; Liang Liu

doi:10.3788/AOS231382

Acta Optica Sinica, Volume. 44, Issue 3, 0314001(2024)

Design and Simulation of Optical Field in Quasi-Two-Dimensional Isotropic Laser Cooling

Xiao Zhang^1,3, Xin Wang², Wenli Wang², Yuan Sun^2,3, and Liang Liu^1,2、*

¹Space Laser Engineering Department, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

²CAS Key Laboratory of Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

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

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Figures & Tables(12)

Fig. 1. Diagram of the diffuse cavity schemes. (a) Flat cavity model used in this paper; (b) flat cavity real picture (white part is diffuse reflection coating)

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Fig. 2. Different modes of incident light scheme. (a) Scheme A and B; (b) scheme C and D; (c) scheme E; (d) scheme F and G; (e) scheme H and I; (f) deflection of the beam incident at θ angle towards the Z axis

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Fig. 3. Optical power density distribution feature extraction surface

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Fig. 4. Simulation results of light field with different injection modes. (a)-(i) Scheme A-I

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Fig. 5. Optical power density distributions with different optical fibers angles based on scheme B

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Fig. 6. Optical power density distributions with different fiber parameters based on scheme B

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Fig. 7. Power density distribution of different diffused reflection cavity height based on scheme B

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Fig. 8. Power density changes when height and volume of the cavity are changed based on scheme B

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Fig. 9. Power density distribution of different diffused reflection cavity volumes based on scheme B

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Table 1. Optical field distribution at different extraction surfaces under various schemes

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Table 1. Optical field distribution at different extraction surfaces under various schemes

Scheme	50 mm×100 mm		50 mm×50 mm		30 mm×30 mm
Scheme	Mean	Standard deviation	Mean	Standard deviation	Mean	Standard deviation
A	242.62	68.99	297.82	41.80	304.64	25.89
B	268.83	39.84	248.85	37.38	245.66	24.39
C	376.91	824.29	354.01	645.32	255.78	23.59
D	344.09	843.94	166.45	27.22	150.40	11.52
E	237.61	71.29	219.93	56.51	206.57	37.94
F	233.63	78.44	293.65	66.91	264.12	23.01
G	296.37	276.59	294.53	320.41	358.18	451.71
H	220.86	74.27	277.79	62.45	249.77	22.42
I	286.92	190.68	279.14	186.24	336.39	266.88

Table 2. Optical field distribution of different optical fibers angles

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Table 2. Optical field distribution of different optical fibers angles

Deflection angle /（°）	50 mm×100 mm		50 mm×50 mm		30 mm×30 mm
Deflection angle /（°）	Mean	Standard deviation	Mean	Standard deviation	Mean	Standard deviation
-3	262.40	36.58	250.87	39.87	231.67	34.82
-2	264.81	36.00	251.14	37.47	236.92	31.89
-1	266.59	37.66	249.24	36.51	240.46	28.70
0	268.83	39.84	248.85	37.38	245.66	24.39
1	268.41	41.92	247.06	38.58	249.93	19.30
2	268.66	44.79	245.44	41.18	253.89	15.17
3	269.86	48.72	244.71	44.89	258.85	13.88
4	271.10	52.55	245.48	50.01	265.24	16.43
5	272.11	55.27	246.67	54.31	271.98	19.28

Table 3. Optical field distribution of different fiber parameters.

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Table 3. Optical field distribution of different fiber parameters.

Parameter	50 mm×100 mm		50 mm×50 mm		30 mm×30 mm
Parameter	Mean	Standard deviation	Mean	Standard deviation	Mean	Standard deviation
Φ=200 μm， NA=0.22	270.01	42.74	248.96	37.39	245.56	24.65
Φ=200 μm， NA=0.39	269.15	52.39	230.99	25.54	222.81	13.65
Φ=200 μm， NA=0.50	270.75	67.22	216.78	28.09	204.36	12.77
Φ=300 μm， NA=0.22	271.22	46.76	249.16	37.48	245.61	24.79
Φ=400 μm， NA=0.22	272.65	51.31	249.72	37.56	246.53	24.43
Φ=600 μm， NA=0.22	275.24	63.45	249.99	37.52	246.99	24.86

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Xiao Zhang, Xin Wang, Wenli Wang, Yuan Sun, Liang Liu. Design and Simulation of Optical Field in Quasi-Two-Dimensional Isotropic Laser Cooling[J]. Acta Optica Sinica, 2024, 44(3): 0314001

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Paper Information

Category: Lasers and Laser Optics

Received: Aug. 9, 2023

Accepted: Oct. 16, 2023

Published Online: Feb. 23, 2024

The Author Email: Liang Liu (liang.liu@siom.ac.cn)

DOI:10.3788/AOS231382

CSTR:32393.14.AOS231382

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology