Phase Noise Characterization and EEPN of a Full C-Band Tunable Laser in Coherent Optical Systems

被引：2

作者：

Villafani, Diego ^{[1
]}

Mirani, Ali ^{[1
]}

Pang, Xiaodan ^{[2
]}

Goobar, Edgard ^{[3
]}

Schroder, Jochen ^{[1
]}

Karlsson, Magnus ^{[1
]}

Andrekson, Peter ^{[1
]}

机构：

[1] Chalmers Univ Technol, Photon Lab, Fibre Opt Commun Res Ctr, Dept Microtechnol & Nanosci, S-41296 Gothenburg, Sweden

[2] Infinera Metro HW R&D, S-11743 Stockholm, Sweden

[3] Finisar Sweden AB, S-17543 Stockholm, Sweden

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2019年 / 31卷 / 24期

关键词：

FM-noise power spectral density; laser phase noise; equalization-enhanced phase noise; tunable laser source; coherent systems; PERFORMANCE; TRANSMISSION;

D O I：

10.1109/LPT.2019.2952816

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We perform phase noise characterization of a tunable laser source that is capable of tuning to 103 channels between 1527.6-1568.36 nm with 50 GHz grid spacing between the channels. The measured frequency modulation (FM) noise power spectral density (PSD) is reproduced by simulations in order to investigate the impact of equalization-enhanced phase noise (EEPN) in a coherent transmission system. The simulations are performed on a 30 Gbaud channel with 16 quadrature amplitude modulation (16QAM) and using pilot-based carrier phase estimation with 3% overhead. By performing extensive system simulations, we show the impact of different accumulated dispersion. Furthermore, we show the possibility to overcome EEPN related penalties by using a local oscillator (LO) with reduced low frequency phase noise or flat FM-noise PSD profiles with lower linewidths.

引用

页码：1991 / 1994

页数：4

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