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

通信学报 ›› 2022, Vol. 43 ›› Issue (7): 31-40.doi: 10.11959/j.issn.1000-436x.2022141

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

张琦涵¹, 巩小雪², 李瑞², 李新³, 黄善国³, 郭磊²^,⁴

¹ 东北大学计算机科学与工程学院，辽宁沈阳 110819
² 重庆邮电大学智能通信与网络安全研究院，重庆 400065
³ 北京邮电大学电子工程学院，北京 100876
⁴ 杭州中科先进技术研究院，浙江杭州 310005

修回日期:2022-06-29 出版日期:2022-07-25 发布日期:2022-06-01
作者简介:张琦涵（1994- ），男，辽宁沈阳人，东北大学博士生，主要研究方向为安全光传输、光纤非线性和光信号处理
巩小雪（1988- ），女，黑龙江绥化人，博士，重庆邮电大学副教授，主要研究方向为无源光网络、相干光通信和安全光传输
李瑞（1997- ），男，河北霸州人，重庆邮电大学博士生，主要研究方向为安全光传输和全光信号处理
李新（1986- ），男，山东枣庄人，博士，北京邮电大学副教授，主要研究方向为数据中心光网络、光网络生存性、光网络安全、软件定义的光网络等
黄善国（1978- ），男，山东淄博人，博士，北京邮电大学教授，主要研究方向为多维光交换与光网络理论与技术、智能光交换与数据光网络、光网络规划与优化技术、高频光载无线系统等
郭磊（1980- ），男，四川眉山人，博士，重庆邮电大学教授，主要研究方向为光通信网络和无线通信网络
基金资助:
国家重点研发计划基金资助项目(2018YFE0206800);国家自然科学基金资助项目(62075024);国家自然科学基金资助项目(62025105);国家自然科学基金资助项目(62071076);国家自然科学基金资助项目(62171050);重庆市自然科学基金资助项目(cstc2019jcyj-msxmX0615);重庆市自然科学基金资助项目(cstc2021jcyj-msxmX0404);重庆市教委创新研究群体基金资助项目(CXQT21019)

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

Qihan ZHANG¹, Xiaoxue GONG², Rui LI², Xin LI³, Shanguo HUANG³, Lei GUO²^,⁴

¹ School of Computer Science and Engineering, Northeastern University, Shenyang 110819, China
² Institute of Intelligent Communication and Network Security, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
³ School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
⁴ Hangzhou Institute of Advanced Technology, Hangzhou 310005, China

Revised:2022-06-29 Online:2022-07-25 Published:2022-06-01
Supported by:
The National Key Research and Development Program of China(2018YFE0206800);The National Nat-ural Science Foundation of China(62075024);The National Nat-ural Science Foundation of China(62025105);The National Nat-ural Science Foundation of China(62071076);The National Nat-ural Science Foundation of China(62171050);The Natural Science Foundation of Chongqing(cstc2019jcyj-msxmX0615);The Natural Science Foundation of Chongqing(cstc2021jcyj-msxmX0404);Chongqing Municipal Education Commission(CXQT21019)

摘要/Abstract

摘要：

在光子防火墙中，为了实现能够有效处理高速光信号的全光模式匹配技术，针对BPSK信号提出了一种信号速率高达42 Gbit/s的全光模式匹配系统，并采用商用器件进行了实验验证。首先，通过给BPSK输入序列分别添加同相和反相的相干载波将BPSK信号转换为2个互为反向的强度调制（IM）信号；然后，通过延时线和由高非线性光纤（HNLF）实现的光学AND门进行相关操作；最后，输出表征全光模式匹配结果的高电平脉冲。仿真和实验结果表明，所提系统可以在8位的42 Gbit/s BPSK输入序列中识别出4位目标序列，验证了BPSK信号的全光模式匹配的可行性，适用于高速光子防火墙。

关键词: 光子防火墙, 全光模式匹配, 高非线性光纤, 光学逻辑门, 光学相关器

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

中图分类号:

TN913.7

张琦涵, 巩小雪, 李瑞, 李新, 黄善国, 郭磊. 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[J]. 通信学报, 2022, 43(7): 31-40.

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.

图/表 11

图1

图2

表1

表2

仿真参数"

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}

表2

图3

图4

图5

图6

表3

图7

图8

参考文献 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

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

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

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