Agilent 5991-4079EN Modeling 252C Extraction and Verification of VCSEL Model for Optical IBIS AMI [16] free download

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Keysight Technologies DesignCon 2014 Modeling, Extraction and Verification of VCSEL Model for Optical IBIS AMI White Paper Abstract A technique of modeling and extraction of VCSEL devices for IBIS-AMI has been proposed. With the measured L-I and V-I curves of the VCSEL, a behavior model is extracted from rate-equation model that includes thermal effects. Here two suitable curve fitting algorithms are used. This model exhibits the observed performance in both time and frequency domains. It has been verified on several mainstream VCSEL devices where a consistent fitting between the measured data and abstracted one is achieved. And the results prove that the modeling, extraction and verification process can abstract a real VCSEL device accurately. The generation of an IBIS-AMI model facilitates system designs that include VCSEL devices. Also a certain VCSEL can be published into a dynamic link library. This technique is intended to help VCSEL vendors build and publish behavior models with the measured device characteristics. By following the IBIS-AMI standard, VCSEL users can simulate their designs more conveniently. Authors' Zhaokai Yuan, Keysight Technologies, Inc. M. V. Ramana Murty, Avago Technologies, Inc. Sanjeev Gupta, Avago Technologies, Inc. Amolak Badesha, Avago Technologies, Inc. Authors Biographies Zhaokai Yuan is at Keysight Technologies EEsof division as a R&D system engineer of the SystemVue team. He mainly focuses on Wireless Communication libraries and High Speed Digital libraries developing. Ramana Murty joined the Fiber Optics III-V Division at Avago Technologies in 2007. He led the development of 850 nm 10G VCSELs for high performance computing and 100 GbE applications. His current interests include the development of VCSELs and p-i-n photodetectors for 25G applications. Sanjeev Gupta is currently employed by Avago Technology Fiber Optic division as Sr. R&D Manager and is leading a team of Signal Integrity, EMI and Layout engineers. From 1994 to 2011 he was employed by Keysight Technologies and held various application engineering positions. He has co-authored numerous papers and was recipient of DesignCon best paper award consecutively for three years (2008, 2009 and 2010). Amolak Badesha is Program Director at Avago Technologies, driving strategic initiatives championed by executive management at Fiber Optics Division. Previously, Amolak built and lead the SI/EMI team at Avago's Fiber Optic Division. Amolak also spent 7 years at Keysight's EEsof Division, specializing in high-speed design. While at Keysight, Amolak made key contributions to innovative products like Automated AMI model generation and Optical AMI modeling. 2 I Introduction The transceiver market has been growing rapidly over the past few years due to the increasing demand of large-scale data communications. An optical link is an effective solution because of high band