A 9pJ/bit SOP optical transceiver with 80 Gbps two-way bandwidth

Fengman Liu; Baoxia Li; Zhihua Li; Lixi Wan; Wei Gao; Yanbiao Chu; Tianmin Du; Jian Song; Haifei Xiang; Haidong Wang; Kun Yang; Binbin Yang

doi:10.1117/12.904197

14 December 2011 A 9pJ/bit SOP optical transceiver with 80 Gbps two-way bandwidth

Fengman Liu, Baoxia Li, Zhihua Li, Lixi Wan, Wei Gao, Yanbiao Chu, Tianmin Du, Jian Song, Haifei Xiang, Haidong Wang, Kun Yang, Binbin Yang

Author Affiliations +

Proceedings Volume 8309, Optical Transmission Systems, Subsystems, and Technologies IX; 83092I (2011) https://doi.org/10.1117/12.904197
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China

Abstract

The high-speed parallel optical transmitter module based on VCSEL/PD array, high-speed specialized integrated circuit, fiber array micro-optical components presents magnificent application and development potential. The coupling alignment between VCSEL/PD array and waveguide array has been reported using silicon optical bench (SiOB) [1-3]. In this paper, A passive coupling method based on SiOB and the packaging of the VCSEL/PD arrays are introduced; the coupling efficiency is about 80% with a misalignment tolerance of +/-15μm, optical cross talk is about -70dB. A silicon optical bench is fabricated as a platform for integrated photonic components. The thermal performance and electrical performance of optical sub-package is analyzed and optimized. A High density SOP Optical Transceiver is designed based on this coupling method. Signal integrity analysis and optimization of the high-density differential signal pairs on PCB is conducted and S parameters are extracted to optimize impedance and minimize the effects of discontinuity in the electrical channels. In addition, to suppress simultaneous switching noise (SSN) and optimize the target impedance, a novel embedded capacitor filter is used instead of the conventional power supply filter, the film capacitor measures 14μm in thickness, has a dielectric constant of 16 and a capacitance density of 1nF/cm². The transceiver loop back diagram is shown; the bit error rate of the optical transceiver is tested loop back with a 2³¹-1 PRBS pattern and found to be 10^-12s^-1 at 10Gbps while dissipating 90mW/channel.

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Fengman Liu, Baoxia Li, Zhihua Li, Lixi Wan, Wei Gao, Yanbiao Chu, Tianmin Du, Jian Song, Haifei Xiang, Haidong Wang, Kun Yang, and Binbin Yang "A 9pJ/bit SOP optical transceiver with 80 Gbps two-way bandwidth", Proc. SPIE 8309, Optical Transmission Systems, Subsystems, and Technologies IX, 83092I (14 December 2011); https://doi.org/10.1117/12.904197

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