光子防火墙中42 Gbit/s BPSK信号4位全光模式匹配系统及实验验证

doi:10.11959/j.issn.1000-436x.2022141

Abstract

Abstract:

To achieve the all-optical pattern matching for optoelectronic firewall which could process high-speed optical signals efficiently, a BPSK all-optical pattern recognition system with the data rate up to 42 Gbit/s was proposed and demonstrated by employing the commercial optical components.First, the input BPSK sequence was converted to a positive and a negative IM signals by adding in-phase and inverse-phase coherent carriers, respectively.Then the converted IM signals were coupled into time delay lines and optical AND logic gates implemented by HNLF to achieve the optical correlation operation.In the end, a high-level optical pulse indicating the pattern matched result was output.The numerical simulation and the experiment results demonstrate that the proposed system can recognize a 4-bit target BPSK sequence from an 8-bit 42 Gbit/s BPSK input sequence, which proves the feasibility of the all-optical pattern matching of BPSK signals and can be applied to high-speed optoelectronic firewall.

Key words: optoelectronic firewall, all-optical pattern matching, HNLF, optical logic gate, optical correlator

CLC Number:

TN913.7

Qihan ZHANG, Xiaoxue GONG, Rui LI, Xin LI, Shanguo HUANG, Lei GUO. All-optical pattern matching system of 42 Gbit/s 4-bit BPSK signals and its demonstration for optoelectronic firewall[J]. Journal on Communications, 2022, 43(7): 31-40.

Figures/Tables 11

参数	值
LD₁中心频率 f₁（中心波长λ₁）	193.067 THz（1 552.792 nm）
LD₂中心频率 f₂（中心波长λ₂）	193.333 THz（1 550.651nm）
LD₁和LD₂的线宽/kHz	100
BPSK信号速率/(Gbit·s^-1)	42
AWG CH1输出的信号幅度/V	0.25
电放大器增益和饱和功率	23 dB/8 dBW
IQ-MZM半波电压V_πDC和V_πRF/V	8
IQ-MZM子/母MZM消光比	20 dB/22.5 dB
IQ-MZM插入损耗/dB	7
EDFA₁和EDFA₂饱和功率/dBm	23
EDFA₁和EDFA₂噪声系数/dB	4.0
HNLF₁和HNLF₂长度/m	200
HNLF₁和HNLF₂色散（1 550 nm）	0 ps (nm?km)
HNLF₁和HNLF₂色散斜率（1550nm）	0.03 ps (nm²?km)
HNLF₁ 和 HNLF₂ 非线性克尔系数n₂/(m²·W^-1)	3.264×10^{- 20}
HNLF₁ 和 HNLF₂ 模场有效面积A_eff/μm²	13.23
FD-OP₁的2个中心频率/THz	192.8/193.6
FD-OP₂中心频率/THz	192.0
FD-OP₁和FD-OP₂带宽/GHz	100
PD响应度/(A·W^-1)	0.65
PD暗电流/nA	5
PD热噪声/ $(A \cdot {Hz}^{- \frac{1}{2}})$	1×10^{- 12}

References 22

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E (t)	E (t-τ)	M (t)	M′ (t)
-1（0）	-1（0）	0（1）	0（0）
-1（0）	+1（1）	0（1）	0（0）
+1（1）	-1（0）	-4（0）	+4（1）
+1（1）	+1（1）	0（1）	0（0）

仪器/元器件	型号及主要参数
AWG	Keysight M8196A 92 GS/s
EA	SHF S807C 23 dB/18 dBm
IQ-MZM	Fujitsu FTM7961EZ 8 V
EDFA	Amonics AEDFA-IL-23dB-FA 23 dBm
HNLF	YOFC NL-1550-Zero
FD-OP	Finisar WaveShaper 4000 A
PD	Finisar MPRV1331A 31 GHz
OSC	Keysight DSOZ594A 80 GS/s

All-optical pattern matching system of 42 Gbit/s 4-bit BPSK signals and its demonstration for optoelectronic firewall

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