NDLI: A low-latency, small-form-factor optical link for the high-luminosity LHC experiments

Content Provider	IEEE Xplore Digital Library
Author	Binwei Deng Mengxun He Jinghong Chen Datao Gong Di Guo Suen Hou Xiaoting Li Futian Liang Chonghan Liu Gang Liu Ping-Kun Teng Xiang, A.C. Tongye Xu You Yang Ye Jingbo Xiandong Zhao Tiankuan Liu
Copyright Year	2013
Description	Author affiliation: Shandong Univ., Ji'nan, China (Tongye Xu) \|\| Hubei Polytech. Univ., Huangshi, China (Binwei Deng; Futian Liang; Xiandong Zhao) \|\| Central China Normal Univ., Wuhan, China (Xiaoting Li) \|\| Dept. of Phys., Southern Methodist Univ., Dallas, TX, USA (Datao Gong; Chonghan Liu; Xiang, A.C.; Ye Jingbo; Tiankuan Liu) \|\| Dept. of Electr. Eng., Southern Methodist Univ., Dallas, TX, USA (Jinghong Chen; You Yang) \|\| Inst. of High Energy Phys., Beijing, China (Gang Liu) \|\| Univ. of Sci. & Technol. of China, Hefei, China (Di Guo) \|\| Univ. of Texas at Dallas, Richardson, TX, USA (Mengxun He) \|\| Inst. of Phys., Taipei, Taiwan (Suen Hou; Ping-Kun Teng)
Abstract	We present a low-latency, small-form-factor optical link designed for the high-luminosity LHC experiments in which the latency and form factor are critical. The optical link on the transmitter side is composed of a transmitter ASIC and a custom-made optical transmitter module. The transmitter ASIC includes an encoder and a serializer. Two serializer ASIC prototypes, operating at 5 and 8 Gbps per channel respectively, have been designed and tested. A low-latency, low-overhead encoder has been verified in FPGAs and is being integrated into a two-channel, 8:1 transmitter ASIC with each channel operating at 5.12 Gbps. A prototype of the custom-made optical transmitter module (called MTx) with separate transmitter optical sub-assemblies (TOSAs) has been demonstrated. A Vertical-Cavity Surface-Emitting Laser (VCSEL) driver ASIC has been developed and will replace the commercial VCSEL laser driver used in the current MTx prototypes. The latency of the whole link, including the transmitter latency and the receiver latency but not including the latency of the fiber, is estimated to be less than 80 ns. The size of the MTx is 42 mm × 15 mm × 6 mm.
Starting Page	1
Ending Page	7
File Size	957790
Page Count	7
File Format	PDF
e-ISBN	9781479905348
DOI	10.1109/NSSMIC.2013.6829447
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-10-27
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical transmitters Application specific integrated circuits Vertical cavity surface emitting lasers Optical fiber communication Clocks Educational institutions Large Hadron Collider
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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