Wide-Band Inline-Amplified WDM Transmission Using PPLN-Based Optical Parametric Amplifier

被引:43
作者
Kobayashi, Takayuki [1 ]
Shimizu, Shimpei [1 ]
Nakamura, Masanori [1 ]
Umeki, Takeshi [1 ,2 ]
Kazama, Takushi [1 ,2 ]
Kasahara, Ryoichi [2 ]
Hamaoka, Fukutaro [1 ]
Nagatani, Munehiko [1 ,2 ]
Yamazaki, Hiroshi [1 ,2 ]
Nosaka, Hideyuki [1 ,2 ]
Miyamoto, Yutaka [1 ]
机构
[1] NTT Corp, NTT Network Innovat Labs, Yokosuka, Kanagawa 2390847, Japan
[2] NTT Corp, NIT Device Technol Labs, Atsugi, Kanagawa 2430198, Japan
关键词
Optical filters; Optical fiber amplifiers; Bandwidth; Stimulated emission; Optical polarization; Optical amplifiers; Nonlinear optics; 800G transmission; digital coherent transmission; high-symbol-rate signal; optical communication systems; optical parametric amplifier (OPA); wavelength division multiplexing (WDM); WAVELENGTH CONVERSION; BANDWIDTH;
D O I
10.1109/JLT.2020.3039192
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
This article proposes an optical parametric amplifier (OPA), as an inline-repeater, using a periodically-poled-LiNbO3 (PPLN) waveguide with over-10-THz amplification bandwidth, and also presents wide-band wavelength-division-multiplexing (WDM) inline-amplified transmission with the OPA. Our PPLN-based OPA is polarization-independent and has a spectrally efficient configuration by filtering phase-conjugated signals (idlers). We implemented our PPLN-based OPA with half its ideal configuration with an over-10-THz amplification bandwidth because of the limited number of PPLN waveguides. The implemented OPA had 5.125-THz amplification bandwidth, gain of beyond 15 dB, and noise figure of less than 5.1-dB. The gain excludes the 5.6-dB loss of an idler rejection filter employed in the transmission experiment so that the implemented OPA can compensate 9.5-dB link loss of transmission fibers and optical components. A 3 x 30.8-km inline-amplified transmission with 41-channel 800-Gbps WDM signal in 125-GHz spacing was successfully demonstrated using our PPLN-based OPA as an inline-repeater. The results also indicate that the OPA's amplification bandwidth can potentially be extended to 10.25 THz.
引用
收藏
页码:787 / 794
页数:8
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