Method for identifying TE11 mode in TM01/TE11 mixed mode system with eight-hole coupler

Jie Ren; Ming Weng; Le Lei; Shu Lin; Meng Cao; Yonggui Zhai

doi:10.11884/HPLPB202234.220040

Journals >High Power Laser and Particle Beams >Volume 34 >Issue 9 >Page 093001 > Article

High Power Laser and Particle Beams
Vol. 34, Issue 9, 093001 (2022)

Method for identifying TE₁₁ mode in TM₀₁/TE₁₁ mixed mode system with eight-hole coupler

Jie Ren, Ming Weng^*, Le Lei, Shu Lin, Meng Cao, and Yonggui Zhai

Author Affiliations

Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China

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DOI: 10.11884/HPLPB202234.220040 Cite this Article

Jie Ren, Ming Weng, Le Lei, Shu Lin, Meng Cao, Yonggui Zhai. Method for identifying TE₁₁ mode in TM₀₁/TE₁₁ mixed mode system with eight-hole coupler[J]. High Power Laser and Particle Beams, 2022, 34(9): 093001 Copy Citation Text

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Fig. 1. Schematic diagram of the circular waveguide eight-hole coupler structure

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TM01 mode and TE11 mode in circular waveguide

Fig. 2. TM₀₁ mode and TE₁₁ mode in circular waveguide

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Fig. 3. Schematic diagram of the serial number of the coupling hole ports

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Fig. 4. Relationship between the proportionality coefficient b and the polarization angle χ

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Δφ/(°)	${\bar P_{3,7}}/{\bar P_{}}$	${\bar P_{2,6}}/{\bar P_{}}$	${\bar P_{4,8}}/{\bar P_{}}$	${\bar P_{1,5}}/{\bar P_{}}$
0	1.165	0.923	1.076	0.834
70	1.165	0.923	1.076	0.834
140	1.165	0.923	1.076	0.834
210	1.165	0.924	1.076	0.834
280	1.165	0.923	1.076	0.834
350	1.165	0.923	1.076	0.834

Table 1. Relationship between power ratio and phase difference

χ/(°)	ρ/%	${\bar P_{1,5}}/{\bar P_{}}$	${\bar P_{2,6}}/{\bar P_{}}$	${\bar P_{3,7}}/{\bar P_{}}$	${\bar P_{4,8}}/{\bar P_{}}$
0	0	0.999	0.999	1.000	1.000
	2	0.989	1.000	1.010	1.000
	4	0.978	1.000	1.021	1.000
	6	0.968	0.998	1.032	1.000
	8	0.956	1.000	1.043	0.999
	10	0.945	1.000	1.054	0.9991
5.625	0	0.999	0.999	1.000	1.000
	2	0.989	0.997	1.010	1.002
	4	0.979	0.995	1.020	1.004
	6	0.968	0.993	1.031	1.006
	8	0.957	0.991	1.042	1.008
	10	0.946	0.989	1.053	1.010
11.25	0	0.999	0.999	1.000	1.000
	2	0.988	0.993	1.015	1.002
	4	0.980	0.991	1.019	1.008
	6	0.970	0.987	1.029	1.012
	8	0.960	0.983	1.040	1.016
	10	0.949	0.979	1.050	1.020
16.875	0	0.999	0.999	1.000	1.000
	2	0.991	0.994	1.008	1.006
	4	0.982	0.988	1.017	1.011
	6	0.973	0.982	1.026	1.017
	8	0.964	0.975	1.035	1.024
	10	0.954	0.969	1.045	1.030
22.5	0	0.999	0.999	1.000	1.000
	2	0.992	0.992	1.007	1.007
	4	0.985	0.985	1.015	1.014
	6	0.977	0.977	1.022	1.022
	8	0.969	0.969	1.030	1.031
	10	0.961	0.961	1.038	1.038

Table 2. Relationship between power ratio and polarization angle and mode mixing ratio

Δφ/（°）	ρ_s/%	χ_s/（°）	ρ_c/%	χ_c/（°）	Δρ/%	Δχ/%
values of parameters in simulation			calculation results by formula-13		error
0	3	12.5	2.819	11.764	6.033	5.888
70	3	12.5	2.810	11.800	6.333	5.600
140	3	12.5	2.817	11.689	6.100	6.488
210	3	12.5	2.817	11.689	6.100	6.488
280	3	12.5	2.808	11.724	6.400	6.208
350	3	12.5	2.819	11.764	6.033	5.888
0	5	12.5	4.760	11.640	4.800	6.880
70	5	12.5	4.754	11.706	4.920	6.352
140	5	12.5	4.768	11.619	4.640	7.048
210	5	12.5	4.749	11.616	5.020	7.072
280	5	12.5	4.749	11.616	5.020	7.072
350	5	12.5	4.770	11.664	4.600	6.688
0	7	12.5	6.741	11.619	3.700	7.048
70	7	12.5	6.749	11.604	3.585	7.168
140	7	12.5	6.731	11.602	3.842	7.184
210	7	12.5	6.726	11.537	3.914	7.704
280	7	12.5	6.737	11.555	3.757	7.560
350	7	12.5	6.749	11.604	3.585	7.168
0	3	0	2.795	−0.259	6.833
70	3	0	2.802	−0.344	6.600
140	3	0	2.794	−0.344	6.866
210	3	0	2.777	−0.345	7.433
280	3	0	2.787	−0.260	7.100
350	3	0	2.806	−0.175	6.466
0	5	0	4.717	−0.225	5.660
70	5	0	4.726	−0.225	5.480
140	5	0	4.713	−0.327	5.740
210	5	0	4.711	−0.378	5.780
280	5	0	4.713	−0.327	5.740
350	5	0	4.715	−0.276	5.700
0	7	0	6.681	−0.283	4.557
70	7	0	6.669	−0.356	4.728
140	7	0	6.669	−0.356	4.728
210	7	0	6.665	−0.428	4.785
280	7	0	6.669	−0.356	4.728
350	7	0	6.685	−0.355	4.500

Table 3. Comparison of calculation result and set value

ρ_s/%	χ_s/（°）	ρ_c/%	χ_c/（°）	Δρ/%	Δχ/%
values of parameters in simulation		calculation results by formula-13		error
2	5.625	1.911	5.378	4.450	−2.343
3	12.500	2.819	11.764	6.033	5.888
4	5.625	3.851	5.143	3.725	4.005
5	12.500	4.760	11.640	4.800	6.880
6	11.250	5.795	10.407	3.416	7.493
7	12.500	6.741	11.619	3.700	7.048
8	5.625	7.895	5.085	1.312	9.600
10	16.875	9.371	16.052	6.290	4.877
30	12.500	32.653	11.510	−8.843	7.920
50	12.500	61.130	11.518	−22.26	7.856
70	12.500	97.920	11.490	−39.885	8.080

Table 4. Application range of formula (13)

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