啁啾管理调制格式中光谱整形滤波器优化
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摘要
讨论了啁啾管理调制中光谱整形滤波器的作用及对直接调制激光器输出啁啾的影响,并对光谱整形滤波器种类、带宽、中心频率、阶数及滤波器在系统中的位置等进行了系统性的优化。结果表明优化后带宽为8.4 GHz、中心频率为193.1237 THz的1阶高斯型滤波器在滤波器前置无色散补偿啁啾管理光纤传输系统中性能最好,其1dB眼开度代价所对应的色散容限为5047 ps/nm。
The function of optical spectral reshaping(OSR) filter in chirp-managed modulation format and its effect on the output chirp of direct modulation laser(DML) were discussed in the paper.The types,bandwidth,center frequency,filter order and the position of the OSR in the CML system were systematically optimized.The results show that the first-order Gaussian reshaping filter with an optimized bandwidth of 8.4 GHz and center frequency of 193.1237 THz,which is at the transmitting end,has the best performance in the CML fiber transmission system without dispersion compensation,and the dispersion tolerance of 1 dB eye opening penalty is 5047 ps/nm.
The function of optical spectral reshaping(OSR) filter in chirp-managed modulation format and its effect on the output chirp of direct modulation laser(DML) were discussed in the paper.The types,bandwidth,center frequency,filter order and the position of the OSR in the CML system were systematically optimized.The results show that the first-order Gaussian reshaping filter with an optimized bandwidth of 8.4 GHz and center frequency of 193.1237 THz,which is at the transmitting end,has the best performance in the CML fiber transmission system without dispersion compensation,and the dispersion tolerance of 1 dB eye opening penalty is 5047 ps/nm.
引文
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[2] Liu B,Zhang L,Xin X,et al.Robust generalized filter bank multicarrier based optical access system with electrical polar coding[J].IEEE Photonics Journal,2016,8(5):1-7.
[3] YANG Jingwen,ZHANG Peipei,LV Xiaoying,et al.Study on localization single-mode high power fiber laser[J].Laser & Infrared,2018,48(3):318-321.(in Chinese)杨敬文,张培培,吕晓英,等.全国产化单纤高功率光纤激光器的研究[J].激光与红外,2018,48(3):318-321.
[4] Suzuki T,Kim S Y,Kani J I,et al.Demonstration of 10-Gbps real-time reed-solomon decoding using GPU direct transfer and kernel scheduling for flexible access systems[J].Journal of Lightwave Technology,2018,36(10):1875-1881.
[5] Sun C,Bae S H,Kim H.Transmission of 28-Gb/s Duobinary and PAM-4 signals using DML for optical access network[J].IEEE Photonics Technology Letters,2016,29(1):130-133.
[6] Zhou Z,Bi M,Xiao S,et al.Experimental demonstration of symmetric 100-Gb/s DML-based TWDM-PON system[J].IEEE Photonics Technology Letters,2015,27(5):470-473.
[7] WANG Xianbin,WANG Yingli,YANG Yanbin,et al.Comparison of OOK transmission performance in different FBG dispersion compensation structures[J].Laser & Infrared,2017,47(1):87-91.(in Chinese)王现彬,王颖莉,杨彦彬,等.不同FBG色散补偿结构中OOK传输性能对比[J].激光与红外,2017,47(1):87-91.
[8] Mahgerefteh D,Liao C,Zheng X,et al.Error-free 250 km transmission in standard fibre using compact 10 Gbit/s chirp-managed directly modulated lasers(CML) at 1550 nm[J].Electronics Letters,2005,41(9):543-544.
[9] Karar A S,Cartledge J C,Roberts K.Transmission over 608 km of standard single-mode fiber using a 10.709-Gb/s chirp managed laser and electronic dispersion precompensation[J].IEEE Photonics Technology Letters,2012,24(9):760-762.
[10] Pan Y S,Xi Y,Li X.Monolithically integrated chirp-managed laser based on a resonant tunneling filter[J].Optical Review,2017,24(4):1-5.
[11] HU Weisheng,YI Lilin,HE Hao,et al.Key technologies of time and wavelength division multiplexing passive optical network[J].Science & Technology Review,2016,34(16):69-75.(in Chinese)胡卫生,义理林,何浩,等.时分波分复用无源光网络关键技术[J].科技导报,2016,34(16):69-75.
[12] Chang G K,Yu J,Huang M F,et al.Applications of 40-Gb/s chirp-managed laser in access and metro networks[J].Journal of Lightwave Technology,2009,27(3):253-265.