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

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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Table 1. Output of silicon-based all-optical Fredkin gates with different inputs
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Table 1. Output of silicon-based all-optical Fredkin gates with different inputs
Input signal Output signal XPM
A B C Q P R
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 2. Output power of silicon-based all-optical Fredkin gate at different input power

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

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 3. Performance comparison of different Fredkin gaints

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Table 3. Performance comparison of different Fredkin gaints

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

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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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Paper Information

Category: Integrated Optics

Received: Oct. 12, 2020

Accepted: Dec. 1, 2020

Published Online: May. 10, 2021

The Author Email: Chen Weiwei (chenweiwei@nbu.edu.cn), Wang Pengjun (wangpengjun@wzu.edu.cn)

DOI:10.3788/AOS202141.0913001

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

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

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

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

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

Table 3. Performance comparison of different Fredkin gaints

Table 3. Performance comparison of different Fredkin gaints