[1] A V Krishnamoorthy, H D Thacker, O Torudbakken et al. From chip to cloud: optical interconnects in engineered systems. J Lightwave Technol, 35, 3103(2017).
[2]
[3] M Nada, S Kanazawa, H Yamazaki et al. High-linearity avalanche photodiode for 40-km transmission with 28-Gbaud PAM4. Optical Fiber Communications Conference and Exhibition, M3C-2(2015).
[4] T Takahara, T Tanaka, M Nishihara et al. Discrete multi-tone for 100 Gb/s optical access networks. Optical Fiber Communications Conference and Exhibition, M2I-1(2014).
[5] Q Yang, Y Tang, Y Ma et al. Experimental demonstration and numerical simulation of 107-Gb/s high spectral efficiency coherent optical OFDM. J Lightwave Technol, 27, 168(2009).
[6] J Man, W Chen, X Song et al. A low-cost 100GE optical transceiver module for 2 km SMF interconnect with PAM4 modulation. Optical Fiber Communications Conference and Exhibition, 1(2014).
[7] J Lee, M S Chen, H D Wang. Design and comparison of three 20-Gb/s backplane transceivers for duobinary, PAM4, and NRZ data. IEEE J Solid-State Circuits, 43, 2120(2008).
[8] K P Zhong, W Chen, Q Sui et al. Experimental demonstration of 500 Gbit/s short reach transmission employing PAM4 signal and direct detection with 25 Gbps device. Optical Fiber Communications Conference and Exhibition, Th3A-3(2015).
[9] L Tao, Y Wang, Y Gao et al. Experimental demonstration of 10 Gb/s multi-level carrier-less amplitude and phase modulation for short range optical communication systems. Opt Express, 21, 6459(2013).
[10] Y Nakanishi, T Ohno, T Yoshimatsu et al. 4 × 28 Gbaud PAM4 integrated ROSA with high-sensitivity APD. Opto-Electronics and Communications Conference (OECC), 1(2015).
[11] X Miao, M Bi, L Li et al. Experimental comparative investigation of 10G-class and 25G-class receivers in 100G-EPON with O-band DML. European Conference on Optical Communication (ECOC), 1(2017).
[12] J J Huang, Y H Jan, H S Chang et al. ESD polarity effect study of monolithic, integrated DFB-EAM EML for 100/400G optical networks. Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 1(2017).
[13]
[14] W Wang, H Li, P Zhao et al. Advanced digital signal processing for reach extension and performance enhancement of 112 Gbps and beyond direct detected DML-based transmission. J Lightwave Technol, 37, 163(2019).
[15] Z Zhang, W Wang, Y Liu et al. 40 km amplifier-less transmission of single wavelength 90 Gbps four-level pulse amplitude modulation signals enabled by an ultrabroadband directly modulated laser. Appl Opt, 57, 4570(2018).
[16] S J Zhang, N H Zhu, Y Liu et al. Potential frequency bandwidth estimation of TO packaging techniques for photodiode modules. Opt Quantum Electron, 38, 675(2006).
[17] S K Kim, O Mizuhara, Y K Park et al. Theoretical and experimental study of 10 Gb/s transmission performance using 1.55 μm LiNbO3-based transmitters with adjustable extinction ratio and chirp. J Lightwave Technol, 17, 1320(1999).