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A 32 Gb/s PAM-4 Optical Transceiver With Active Back Termination in 40 nm CMOS Technology

Wei-Hsiang Ho, Yi-Hsun Hsieh, Boris Murmann, Wei-Zen Chen
2021 IEEE Open Journal of Circuits and Systems  
This article describes the design of a 32 Gb/s four-level pulse amplitude modulation (PAM-4) optical transceiver in a 40 nm CMOS technology.  ...  The power consumptions are about 146.8 mW and 128.8 mW respectively for the PAM-4 transmitter and receiver.  ...  This article describes the design of a 32 Gb/s optical PAM-4 transceiver.  ... 
doi:10.1109/ojcas.2020.3036531 fatcat:t3fwt3rsdzgv3nr6jltt34w2uu

Modulation Schemes for Single-Laser 100 Gb/s Links: Single-Carrier

Milad Sharif, Jose K. Perin, Joseph M. Kahn
2015 Journal of Lightwave Technology  
We evaluate single-carrier modulation techniques for 100 Gb/s single-laser data center interconnects.  ...  The performance is evaluated in terms of the required average optical power to achieve a target bit-error ratio for a given modulator bandwidth.  ...  The general idea is to transmit 100 Gb/s per wavelength and use parallel optics to enable 400 Gb/s and possibly 1.6 Tb/s links.  ... 
doi:10.1109/jlt.2015.2470523 fatcat:rb2ifcj62ndk7gwmkyyo7tblmy

Up to 168-Gb/s PAM-4 direct detection transmission with silicon travelling wave Mach-Zehnder modulator [article]

Fan Yang, Yixiao Zhu, Lei Zhang, Xiaoke Ruan, Yanping Li, Fan Zhang
2018 arXiv   pre-print
Based on a silicon travelling wave Mach-Zehnder modulator, we demonstrate record 168Gb/s (84Gbaud) and 160Gb/s (80Gbaud) PAM-4 direct detection transmission over 1km and 2km SSMF, respectively, with bit  ...  Therefore, the net bit rate of a single channel is 129.2(=80×2/1.2/(64×2+128×4+20000) ×20000) Gb/s with consideration of both frame redundancy and the 20% overhead HD-FEC.  ...  Fig. 5 . 5 (a) Measured optical spectra of Nyquist PAM-4 signals at BTB. (b) Measured received power for 80Gbaud PAM-4 signal at BTB, after 1km and 2km SSMF transmission.  ... 
arXiv:1812.11081v1 fatcat:pcfkfxgzzfchrhefjb32mg3vly

10-Gb/s Transmission Over 10-m SI-POF With ${M}$ -PAM and Multilayer Perceptron Equalizer

Isaac N. Osahon, Majid Safari, Wasiu O. Popoola
2018 IEEE Photonics Technology Letters  
Daum, POF Handbook: 215 Optical Short Range Transmission Systems. Springer, 2008. AQ:2 10-Gb/s Transmission Over 10-m SI-POF With M-PAM and Multilayer Perceptron Equalizer Isaac N.  ...  Using this equalizer 5 with 32-PAM, a data rate of 10 Gb/s is achieved over the 6 10-m SI-POF at a bit error rate of 10 −2 , which is below the 7 20% forward error correction limit. 8 Index Terms-Polymer  ... 
doi:10.1109/lpt.2018.2825146 fatcat:gwxl6vpyy5e63oinnegltnh36q

Modulation Schemes for Single-Laser 100 Gb/s Links: Multicarrier

Jose Krause Perin, Milad Sharif, Joseph M. Kahn
2015 Journal of Lightwave Technology  
Performance is quantified in terms of the required average optical power to achieve a target bit-error probability for a given modulator bandwidth.  ...  We first present a semi-analytical performance and complexity evaluation of these OFDM methods including the effects of linear filtering, clipping, and quantization.  ...  Fig. 4 shows the optical power penalty for DC-and ACO-OFDM with (a) 16-QAM and (b) 64-QAM for 64 Fig. 4 . 4 Fig. 4.  ... 
doi:10.1109/jlt.2015.2480700 fatcat:tqljsmubzbdxlkhg2b7qrx4kzu

40 Gb/s PAM-4 Transmitter IC for Long-Wavelength VCSEL Links

Wouter Soenen, Renato Vaernewyck, Xin Yin, Silvia Spiga, Markus-Christian Amann, Kamalpreet S. Kaur, Paraskevas Bakopoulos, Johan Bauwelinck
2015 IEEE Photonics Technology Letters  
Bit-error rate experiments at 28 Gb/s and 40 Gb/s up to 1 km of SMF reveal that four-level pulse amplitude modulation (PAM-4) can compete with non-returnto-zero (NRZ) in terms of energy efficiency and  ...  Conventional 850 nm multi-mode fiber (MMF) links deployed in warehouse-scale data centers will be limited by modal dispersion beyond 10 Gb/s when covering distances up to 1 km.  ...  Viaene from imec for wire bonding the transmitter board and Sumitomo Electric Device Innovations for the OE 40 G receiver module.  ... 
doi:10.1109/lpt.2014.2372041 fatcat:3xtuisxowbclfjykmwhqtuivv4

Highly sensitive 10 Gb/s PAM-4 optical receiver circuit for three-dimensional optoelectronic integration

Nemanja Vokić, Dinka Milovančev, Bernhard Goll, Horst Zimmermann
2016 The Journal of Engineering  
On the basis of measurement results and using the expected value of the photodetector responsivity of 1 A/W, the PAM-4 circuit consumes 145 mW, sensitivity is −21.8 dBm at 10 Gb/s, and at a bit error rate  ...  This study presents a 0.35 µm silicon germanium bipolar complementary metal-oxide-semiconductor 10 Gb/s receiver circuit optimised for photonic-electronic three-dimensional integration.  ...  The PAM-4 sensitivity at 10 Gb/s with BER = 10 -9 is -21.8 dBm, under the assumption of an infinite extinction ratio and a photodetector responsivity of 1 A/W.  ... 
doi:10.1049/joe.2016.0242 fatcat:xnqb5psklrcvfligzbvnuodnme

First Real-Time Demonstration of 128 Gb/s PAM-4 Transmission Over 1 km SMF Using a Si Photonics Transmitter

Jochem Verbist, Joris Lambrecht, Michiel Verplaetse, Srinvasan Ashwyn Srinivasan, Peter De Heyn, Timothy De Keulenaer, Arno Vyncke, Michael Vanhoecke, Joris Van Campenhout, Xin Yin, Gunther Roelkens, Guy Torfs
2018 2018 European Conference on Optical Communication (ECOC)  
Fig. 2: (a) Experiment setup (inset: block diagram of the BiCMOS transmitter IC and the receiver IC); (b) Implementation of the real-time PAM-4 receiver with automatic Gray code demapper.  ...  PAM-4 over 1 km fiber without requiring any DSP or DAC/ADC.  ...  Acknowledgements This work was supported by the imec IAP on Optical I/O for the GeSi EAM, the UGent IOF for the Tx/Rx ICs, the H2020 projects TERABOARD and PICTURE, the UGent BOF and the FWO.  ... 
doi:10.1109/ecoc.2018.8535300 fatcat:it2e3romxjgcnhcwfgzucq3dty

Improved Power Budget of 112 Gb/s/$\lambda$ Intra-Datacentre Links using a Split-Carrier Transmitter Architecture

Thomas Gerard, Zhixin Liu, M. Sezer Erkilinc, Lidia Galdino, Polina Bayvel, Benn Charles Thomsen, Domanic Lavery
2019 IEEE Photonics Journal  
Simulation and experimental results are presented for both Nyquist-shaped 56 GBd PAM-4 and N-SCM 28 GBd 16-ary QAM (16-QAM), quantifying the SCT performance at 112 Gb/s in terms of received optical power  ...  The results are compared against a conventional transmitter modulated with Nyquist-shaped 56 GBd PAM-4.  ...  This provides 400 Gb/s with 12% overhead.  ... 
doi:10.1109/jphot.2019.2930325 fatcat:cqekpz27tjhfrihiloggysctmm

100-Gb/s Hybrid Multiband CAP/QAM Signal Transmission Over a Single Wavelength

Jinlong Wei, Qixiang Cheng, David G. Cunningham, Richard V. Penty, Ian H. White
2015 Journal of Lightwave Technology  
Compared with the case of using a standard non phase compensated CAP receiver, the use of the modified QAM-16/32/64 receiver significantly lowers system timing jitter sensitivity in the multiband as well  ...  For practical jitter conditions of ±6ps, three HMB CAP/QAM systems with optimum band counts are identified to be capable of supporting single laser 100 Gb/s transmission over 15 km SMF.  ...  For example, it has been shown that 100 Gb/s optical OFDM and CAP using a single DML with less than 20 GHz bandwidth can successfully support transmission over 2 km SMF whilst PAM systems cannot [4] .  ... 
doi:10.1109/jlt.2014.2387352 fatcat:roiy5spxjrb3ro5elbfb3cagoe

A Low-Voltage 35-GHz Silicon Photonic Modulator-Enabled 112-Gb/s Transmission System

Alireza Samani, Mathieu Chagnon, David Patel, Venkat Veerasubramanian, Samir Ghosh, Mohamed Osman, Qiuhang Zhong, David V. Plant
2015 IEEE Photonics Journal  
Digital signal processing is applied at the transmitter and receiver. 56-GBaud PAM-4 and 64-Gb/s PAM-2 transmission is demonstrated below a pre-FEC hard decision threshold of 4:4 Â 10 À3 .  ...  We report a successful 112-Gb/s transmission of four-level pulse amplitude modulation over 5 km of SMF using 2.2 V pÀp drive voltage.  ...  (a) PAM-2 at 30 Gb/s, (b) PAM-2 at 50 Gb/s, (c) PAM-4 at 60 Gb/s, (d) PAM-4 at 80 Gb/s, (e) PAM-4 at 100 Gb/s, and (f) PAM-4 at 112 Gb/s.  ... 
doi:10.1109/jphot.2015.2426875 fatcat:b7hcvnwpmfd3zleftei566vise

Radio-Over-Fiber 16-QAM, 100-km Transmission at 5 Gb/s Using DSB-SC Transmitter and Remote Heterodyne Detection

Chia-Kai Weng, Yu-Min Lin, Winston I. Way
2008 Journal of Lightwave Technology  
system using a 16-QAM signal at 5 Gb/s and 18 GHz, with a transmission distance of 100 km between a mobile service center and a base station.  ...  By using a double-sideband suppressed carrier (DSB-SC) optical transmitter and a remote self-heterodyned (RSH) detection method, we experimentally and analytically proved the feasibility of a radio-over-fiber  ...  The 4-PAM signal was then amplified and filtered by a linear-phase low-pass-filter (LPF) with a 3 dB-bandwidth of 930 MHz. The measured eye diagram at the LPF output is shown in Fig. 5 .  ... 
doi:10.1109/jlt.2007.912526 fatcat:l7eta62unfhzria5mmptvro2ve

Simplified Soft-Output Direct Detection FTN Algorithm for 56-Gb/s Optical PAM-4 System Using 10G-Class Optics

Shuangyue Liu, Yaojun Qiao, Xizi Tang, Mengqi Guo, Xuekai Xu, Zhongliang Sun, Han Cui, Yueming Lu
2020 IEEE Access  
The feasibility of the proposed algorithm is verified in a C-band 56-Gb/s 4-ary pulse amplitude modulation (PAM-4) system using 10G-class optics, and the 3-dB system bandwidth is only 5.5 GHz.  ...  DD-FTN cannot achieve the bit error rate (BER) threshold of 10 −3 , while the simplified SO-DD-FTN can achieve the BER threshold at received optical power of −14.5 dBm.  ...  of the 56-Gb/s optical PAM-4 system for BTB and 20-km SSMF.  ... 
doi:10.1109/access.2020.2999346 fatcat:lxlfjvguezgp5admhfvqr3ojka

56 Gb/s multi-band CAP for data center interconnects up to an 80 km SMF

Jinlong Wei, Nicklas Eiselt, Christian Sanchez, Ruoyang Du, Helmut Griesser
2016 Optics Letters  
Annika Dochhan and Aymen Fakhfakh from ADVA Optical Networking SE, Germany, for useful discussions and suggestions.  ...  /s [2] or 4 channels of 100 Gb/s [3] [4] [5] [6] each.  ...  Demonstrations have been conducted to show that 400-Gb/s DMT on 8 channels [10] can successfully support 82 km of SMF transmissions and a single channel 112-Gb/s PAM-4 signal [12] transmission was  ... 
doi:10.1364/ol.41.004122 pmid:27607988 fatcat:yxo2myyn6vcxhoo4j47aw5ipae

Experimental Investigation of 400 Gb/s Data Center Interconnect Using Unamplified High-Baud-Rate and High-Order QAM Single-Carrier Signal

Yang Yue, Qiang Wang, Jon Anderson
2019 Applied Sciences  
We show that the 64 GBd 16-QAM, and 64-QAM signals can potentially enable 400 Gb/s and 600 Gb/s DCI application for 40 km and beyond of unamplified fiber link.  ...  We then discuss different perspectives on the 400G pluggable module, including form factor, architecture, digital signal processing (DSP), and module power consumption, following 400G pluggable optics  ...  DSP: digital signal processing, TROSA: transmitter and receiver optical subassembly, Tx: transmitter, Rx: receiver. Figure 4 . 4 Experimental setup.  ... 
doi:10.3390/app9122455 fatcat:khs3ie2sbvdidi74stvbks5zwu
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