Silicon-Based All-Optical Fredkin Gate Using Cross-Phase Modulation Effect

Ruolan Yu; Jun Li; Weiwei Chen; Pengjun Wang

doi:10.3788/AOS202141.0913001

Journals >Acta Optica Sinica >Volume 41 >Issue 9 >Page 0913001 > Article

Acta Optica Sinica
Vol. 41, Issue 9, 0913001 (2021)

Silicon-Based All-Optical Fredkin Gate Using Cross-Phase Modulation Effect

Ruolan Yu¹, Jun Li¹, Weiwei Chen^1、*, and Pengjun Wang^2、**

Author Affiliations

¹Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo, Zhejiang 315211, China

²College of Mathematical, Physics and Electronic Information Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China

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DOI: 10.3788/AOS202141.0913001 Cite this Article Set citation alerts

Ruolan Yu, Jun Li, Weiwei Chen, Pengjun Wang. Silicon-Based All-Optical Fredkin Gate Using Cross-Phase Modulation Effect[J]. Acta Optica Sinica, 2021, 41(9): 0913001 Copy Citation Text

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Silicon-based all-optical Fredkin gate based on XPM effect. (a) Structural schematic; (b) schematic of section of phase shift arm; (c) mode field distribution of TE mode

Fig. 1. Silicon-based all-optical Fredkin gate based on XPM effect. (a) Structural schematic; (b) schematic of section of phase shift arm; (c) mode field distribution of TE mode

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$Schematic of fractional Fourier transform method$

Fig. 2. Schematic of fractional Fourier transform method

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Fig. 3. Influence of waveguide structural parameters on performance of silicon-based all-optical Fredkin gate. (a) Waveguide linear absorption coefficient; (b) worst extinction ratio; (c) pump light power

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Fig. 4. Influence of beam splitting ratio on worst extinction ratio of silicon-based all-optical Fredkin gate. (a) S_r1; (b) S_r2; (c) S_r3; (d) S_r4

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Fig. 5. Spectrum of silicon-based all-optical Fredkin gates in different logic states. (a) Output signal is 000; (b) output signal is 001; (c) output signal is 010; (d) output signal is 011; (e) output signal is 100; (f) output signal is 110; (g) output signal is 101; (h) output signal is 111

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Fig. 6. Dynamic response diagram of silicon-based all-optical Fredkin gate

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Input signal			Output signal			XPM
A	B	C	Q	P	R	XPM
0	0	0	0	0	0	0
0	0	1	0	0	1	0
0	1	0	0	1	0	0
0	1	1	0	1	1	0
1	0	0	1	0	0	0
1	0	1	1	1	0	1
1	1	0	1	0	1	1
1	1	1	1	1	1	1

Table 1. Output of silicon-based all-optical Fredkin gates with different inputs

Input 1 /W	Input 2 /mW	Input 3 /mW	Output 1 /mW	Output 2 /mW	Output 3 /mW
0	0	0	0	2.302×10^-4	2.302×10^-4
0	0	24.172	0	2.302×10^-4	16.15
0	24.172	0	0	16.15	2.302×10^-4
0	24.172	24.172	0	16.15	16.15
24.172	0	0	24.172	2.302×10^-4	2.302×10^-4
24.172	0	24.172	24.172	16.27	2.302×10^-4
24.172	24.172	0	24.172	2.302×10^-4	16.27
24.172	24.172	24.172	24.172	16.27	16.27

Table 2. Output power of silicon-based all-optical Fredkin gate at different input power

Type	Pump lightpower /mW	Linear absorptioncoefficient /(dB·m^-1)	Extinction ratio /dB
Fredkin gate in Ref. [15]	2.00	34.300	13.00
Fredkin gate in Ref. [16]	25.00	NA	8.13
Fredkin gate in Ref. [17]	1×10³	30.000	NA
Fredkin gate in Ref. [18]	1.82	NA	12.23
Fredkin gate in this work	24.172×10³	54.154	48.46

Table 3. Performance comparison of different Fredkin gaints

Ruolan Yu, Jun Li, Weiwei Chen, Pengjun Wang. Silicon-Based All-Optical Fredkin Gate Using Cross-Phase Modulation Effect[J]. Acta Optica Sinica, 2021, 41(9): 0913001

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