高线宽容忍度的高谱效SSB-PAM-DD方案

doi:10.11959/j.issn.1000-436x.2022100

通信学报 ›› 2022, Vol. 43 ›› Issue (5): 36-44.doi: 10.11959/j.issn.1000-436x.2022100

高线宽容忍度的高谱效SSB-PAM-DD方案

卢东旭¹, 周娴¹^,², 刘飞¹, 霍佳皓¹, 苑金辉¹, 隆克平¹

¹ 北京科技大学计算机与通信工程学院，北京 100083
² 北京科技大学顺德研究生院，广东佛山 528300

修回日期:2021-12-14 出版日期:2022-05-25 发布日期:2022-05-01
作者简介:卢东旭（1991- ），男，山东泰安人，北京科技大学博士生，主要研究方向为短距光传输系统和数字信号处理
周娴（1982- ），女，重庆人，博士，北京科技大学教授，主要研究方向为高速光传输理论与技术、分布式光纤传感技术、数字信号处理算法
刘飞（1990- ），男，安徽池州人，博士，北京科技大学讲师，主要研究方向为相位解调技术、噪声分析方法和光纤传感技术
霍佳皓（1989- ），男，河北邢台人，博士，北京科技大学讲师，主要研究方向为短距光传输系统和数字信号处理
苑金辉（1981- ），男，河北廊坊人，博士，北京科技大学教授，主要研究方向为光纤与波导非线性及应用、新型光电子器件
隆克平（1968- ），男，四川巴中人，博士，北京科技大学教授，主要研究方向为光互联网络及交换技术、新一代网络理论与技术、无线移动通信、网络新业务与安全
基金资助:
国家重点研发计划基金资助项目(2019YFB1803905);国家自然科学基金资助项目(61871030);国家自然科学基金资助项目(62171022);广东基础与应用基础研究基金资助项目(2021B1515120057);北京市自然科学基金资助项目(4222009);北京科技大学顺德研究生院科技创新基金资助项目(BK19AF005)

High spectral efficiency SSB-PAM-DD scheme with high linewidth tolerance

Dongxu LU¹, Xian ZHOU¹^,², Fei LIU¹, Jiahao HUO¹, Jinhui YUAN¹, Keping LONG¹

¹ School of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing 100083, China
² Shunde Graduate School, University of Science and Technology Beijing, Foshan 528300, China

Revised:2021-12-14 Online:2022-05-25 Published:2022-05-01
Supported by:
The National Key Research and Development Program of China(2019YFB1803905);The National Natural Science Foundation of China(61871030);The National Natural Science Foundation of China(62171022);Guangdong Basic and Applied Basic Research Foundation(2021B1515120057);Beijing Natural Science Foundation(4222009);The Scientific and Technological Innovation Foundation of Shunde Graduate School, USTB(BK19AF005)

摘要/Abstract

摘要：

针对低成本下的高色散（CD）稳健性单边带（SSB）直接检测（DD），对3种单边带脉冲幅度调制方案进行了分析，其中在发射端加入下变频的方案可获得最大频谱利用率，但恶化了系统对激光器线宽的容忍度。鉴于此，根据单边带脉冲幅度调制信号的特性，提出了一种包含相位损伤免疫均衡算法和改进盲相位补偿算法的数字信号处理方案。仿真结果表明，针对112 Gbit/s的单边带脉冲幅度直接检测，无论是背靠背还是传纤80 km场景，在同一误码率阈值下改进方案可容忍线宽为1 MHz，而原始方案仅为100 kHz，实现了高谱效、高线宽容忍度的低成本单边带脉冲幅度调制信号传输。

关键词: 单边带, 脉冲幅度调制, 直接检测, 激光器线宽, 信号均衡, 相位补偿

Abstract:

For low-cost and high chromatic dispersion (CD) robustness single sideband (SSB) with direct detection (DD), three schemes of SSB with pulse amplitude modulation (PAM) were investigated.Among that, the highest spectral efficiency was achieved by the scheme of adding the frequency down-conversion at the transmitter.However, that scheme reduces the tolerance for laser linewidth.Hence, based on the character of the SSB-PAM signal, a DSP scheme was proposed, including a modified equalization algorithm with phase distortion immunity and blind phase search algorithm.The simulation results show that the modified scheme can tolerate 1 MHz linewidth for 112 Gbit/s SSB-PAM-DD, while the original scheme for SSB-PAM was only 100 kHz at the same bit error rate (BER) threshold.Therefore, the proposed scheme can achieve a high frequency efficiency, high linewidth tolerance, and low-cost SSB-PAM signaling transmission.

Key words: single sideband, pulse amplitude modulation, direct detection, laser linewidth, signal equalization, phase compensation

中图分类号:

TN913

卢东旭, 周娴, 刘飞, 霍佳皓, 苑金辉, 隆克平. 高线宽容忍度的高谱效SSB-PAM-DD方案[J]. 通信学报, 2022, 43(5): 36-44.

Dongxu LU, Xian ZHOU, Fei LIU, Jiahao HUO, Jinhui YUAN, Keping LONG. High spectral efficiency SSB-PAM-DD scheme with high linewidth tolerance[J]. Journal on Communications, 2022, 43(5): 36-44.

图/表 12

图1

表1

3种SSB-PAM方案对比"

方案	发射端				接收端		是否受相位噪声影响
方案	调制器	激光器数量/个	带宽	调制非线性	PD数量/个	带宽	是否受相位噪声影响
载波辅助单驱MZM SSB-PAM方案	单驱MZM (偏置null点)	2	B	否	1	2B或＞B^[21]	是
直流偏置引入载波SSB-PAM方案	IQ调制器或DDMZM (偏置引入载波)	1	B	是	1	B	否
基于发射端下变频的高频谱效率SSB-PAM方案	IQ调制器或DDMZM (偏置null点)	2	$\frac{B}{2}$	否	1	B	是

表1

图2

图3

图4

图5

表2

SSB-PAM主要仿真参数"

参数	值
系统速率/(Gbit·s^-1)	112
DAC/ADC有效比特位/bit	8
发射端/接收端带宽/GHz	12 /25
IQ调制器半波电压/V	3
色散系数/(ps(nm·km)^-1)	17
PD响应率/(A·W^-1)	0.65
PD热噪声 $/ (pA \cdot {Hz}^{- \frac{1}{2}})$	20
PD暗电流/nA	10

表2

图6

图7

图8

图9

图10

参考文献 28

[1]	WANG K H , ZHANG J , ZHAO M M ,et al. High-speed PS-PAM8 transmission in a four-lane IM/DD system using SOA at O-band for 800G DCI[J]. IEEE Photonics Technology Letters, 2020,32(6): 293-296.
[2]	ANDRéN S , LOUCHET H , FILSINGER V ,et al. OFDM and PAM comparison using a high baudrate low resolution IM/DD interface for 400G Ethernet access[J]. Optics Express, 2016,24(11): 11926-11931.
[3]	ZHANG J , WANG K H , WEI Y R ,et al. 280 Gb/s IM/DD PS-PAM-8 transmission over 10 km SSMF at O-band for optical interconnects[C]// Proceedings of 2020 Optical Fiber Communications Conference and Exhibition (OFC). Piscataway:IEEE Press, 2020: 1-3.
[4]	ZHONG K P , ZHOU X , HUO J H ,et al. Digital signal processing for short-reach optical communications:a review of current technologies and future trends[J]. Journal of Lightwave Technology, 2018,36(2): 377-400.
[5]	LI F , LI X Y , ZHANG J W ,et al. Transmission of 100-Gb/s VSB DFT-spread DMT signal in short-reach optical communication systems[J]. IEEE Photonics Journal, 2015,7(5): 1-7.
[6]	GAO Y L , ZHUGE Q B , WANG W ,et al. 40 Gb/s CAP32 short reach transmission over 80 km single mode fiber[J]. Optics Express, 2015,23(9): 11412-11423.
[7]	PENG W R , ZHANG B , FENG K M ,et al. Spectrally efficient direct-detected OFDM transmission incorporating a tunable frequency gap and an iterative detection techniques[J]. Journal of Lightwave Technology, 2009,27(24): 5723-5735.
[8]	RANDEL S , PILORI D , CHANDRASEKHAR S ,et al. 100-Gb/s discrete-multitone transmission over 80-km SSMF using single-sideband modulation with novel interference-cancellation scheme[C]// Proceedings of 2015 European Conference on Optical Communication (ECOC). Piscataway:IEEE Press, 2015: 1-3.
[9]	ZHANG L , ZUO T J , MAO Y ,et al. Beyond 100-Gb/s transmission over 80-km SMF using direct-detection SSB-DMT at C-band[J]. Journal of Lightwave Technology, 2016,34(2): 723-729.
[10]	周娴, 卢东旭, 霍佳皓 ,等. 基于单边带调制技术的数据中心光互连性能分析[J]. 重庆邮电大学学报(自然科学版), 2020,32(5): 707-718.
	ZHOU X , LU D X , HUO J H ,et al. Performance analysis of data center optical interconnection based on single-side band modulation technologies[J]. Journal of Chongqing University of Posts and Telecommunications (Natural Science Edition), 2020,32(5): 707-718.
[11]	ERKILIN?M S , PACHNICKE S , GRIESSER H ,et al. Dispersion-precompensated direct-detection Nyquist pulse-shaped subcarrier modulation using a dual-drive Mach-Zehnder modulator[C]// Proceedings of 2015 Optoelectronics and Communications Conference (OECC). Piscataway:IEEE Press, 2015: 1-3.
[12]	ZHANG Q , STOJANOVIC N , XIE C S ,et al. Transmission of single lane 128 Gbit/s PAM-4 signals over an 80 km SSMF link,enabled by DDMZM aided dispersion pre-compensation[J]. Optics Express, 2016,24(21): 24580-24591.
[13]	MECOZZI A , ANTONELLI C , SHTAIF M . Kramers-Kronig coherent receiver[J]. Optica, 2016,3(11): 1220.
[14]	MECOZZI A . A necessary and sufficient condition for minimum phase and implications for phase retrieval[J]. arXiv Preprint,arXiv:1606.04861, 2016.
[15]	GUI T , YI L Y , GUO C J ,et al. 120 Gbaud PAM-4 transmission over 80-km SSMF using optical band interleaving and Kramers-Kronig detection[J]. Optics Express, 2018,26(20): 25934-25943.
[16]	WU X , ZHANG J W , GUO C J ,et al. 140-GBaud PAM-4 transmission using optical band interleaving,Kramers-Kronig detection and Volterra based equalization[C]// Proceedings of 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC). Piscataway:IEEE Press, 2019: 1-3.
[17]	ANTONELLI C , MECOZZI A , SHTAIF M . Kramers-Kronig PAM transceiver and two-sided polarization-multiplexed Kramers-Kronig transceiver[J]. Journal of Lightwave Technology, 2018,36(2): 468-475.
[18]	LU D X , ZHOU X , YANG Y Q ,et al. Theoretical analysis of PAM-N and M-QAM BER computation with single-sideband signal[J]. Science China Information Sciences, 2021,64(8): 1-10.
[19]	ZHU Y X , JIANG M X , RUAN X K ,et al. 16×112Gb/s single-sideband PAM4 WDM transmission over 80km SSMF with Kramers-Kronig receiver[C]// Proceedings of 2018 Optical Fiber Communications Conference and Exposition (OFC). Piscataway:IEEE Press, 2018: 1-3.
[20]	AN S H , ZHU Q M , LI J C ,et al. Accurate field reconstruction at low CSPR condition based on a modified KK receiver with direct detection[J]. Journal of Lightwave Technology, 2020,38(2): 485-491.
[21]	HU Q , BORKOWSKI R , SCHUH K ,et al. Optical field reconstruction of real-valued modulation using a single-ended photoreceiver with half-symbol-rate bandwidth[J]. Journal of Lightwave Technology, 2021,39(4): 1194-1203.
[22]	YANG C , LUO M , LI C ,et al. Transmission of 64-Gb/s pilot-assisted PAM-4 signal over 1440-km SSMF with phase noise mitigation[J]. IEEE Photonics Journal, 2019,11(1): 1-9.
[23]	LI X , LUO M , LI C ,et al. Direct detection of pilot-assisted PAM-4 signals with large phase noise tolerance[J]. Optics Letters, 2019,44(22): 5457-5460.
[24]	ZHOU X , ZHONG K P , HUO J H ,et al. 112 Gb/s transmission over 80 km SSMF using PDM-PAM4 and coherent detection without optical amplifier[J]. Optics Express, 2016,24(15): 17359-17371.
[25]	ZHOU X , GAO Y Y , HUO J H ,et al. Theoretical analysis of phase noise induced by laser linewidth and mismatch length in self-homodyne coherent systems[J]. Journal of Lightwave Technology, 2021,39(5): 1312-1321.
[26]	LU D X , ZHOU X , HUO J H ,et al. Theoretical CSPR analysis and performance comparison for four single-sideband modulation schemes with Kramers-Kronig receiver[J]. IEEE Access, 2019,7: 166257-166267.
[27]	ZHU M Y , ZHANG J , HUANG X T ,et al. Influence of EEPN and P2A noise with CD pre- and post-compensation in optical SSB transmission and Kramers-Kronig receiver system[J]. Optics Express, 2019,27(14): 19664-19674.
[28]	WANG W , ZOU D D , WANG X W ,et al. 100 Gbit/s/λ DMT-PON system based on intensity modulation and heterodyne coherent detection[J]. IEEE Photonics Technology Letters, 2021,33(18): 1014-1017.

高线宽容忍度的高谱效SSB-PAM-DD方案

High spectral efficiency SSB-PAM-DD scheme with high linewidth tolerance

在线阅读

PDF下载

可视化

摘要/Abstract

引用本文

使用本文

图/表 12

参考文献 28

相关文章 1

Metrics

推荐阅读 0