NDLI: Electro-Optical Co-Design to Minimize Power Consumption of a 32 GBd Optical IQ-Transmitter Using InP MZ-Modulators

Content Provider	IEEE Xplore Digital Library
Author	Wolf, N. Yan, L. Choi, J.-H. Kapa, T. Wunsch, S. Klotzer, R. Velthaus, K.-O. Bach, H.-G. Schell, M.
Copyright Year	2015
Description	Author affiliation: HHI, Fraunhofer Inst. for Telecommun., Berlin, Germany (Wolf, N.; Yan, L.; Choi, J.-H.; Kapa, T.; Wunsch, S.; Klotzer, R.; Velthaus, K.-O.; Bach, H.-G.; Schell, M.)
Abstract	This paper addresses the power reduction concepts of an electro-optical transmitter applicable for future small form factor modules such as CFP4. To satisfy the power restrictions of these standards, equations and detailed explanations of the relevant shares of overall power consumption are given. To improve the overall efficiency, an open collector driver realized in a SiGe technology with fT = 190 GHz and fmax = 200 GHz is proposed for driving an InP-based IQ MZ-modulator. This approach saves 30 % of the driver power and achieves an EVMrms of 8.7 % for a QPSK-Signal at 32 GBd. A detailed performance comparison to a structurally identical back terminated driver is presented. Further power reduction is demonstrated with a bias tee configuration for a single modulator. DPSK measurements show a very low power consumption of 290 mW at an EVMrms of 7.5 %. The presented bias tee solution simplifies the assembly without performance compromises. All drivers presented in this paper have differential input/output signals and were designed for a non 50 Ohm output impedance to optimize power consumption and performance.
Starting Page	1
Ending Page	4
File Size	559772
Page Count	4
File Format	PDF
e-ISBN	9781479984947
DOI	10.1109/CSICS.2015.7314499
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Modulation Power demand Radio frequency Assembly Impedance Mathematical model Bandwidth
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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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
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