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. 2017 Oct 24;7:13857. doi: 10.1038/s41598-017-14347-3

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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(a) Photograph of the test setup combining the Tx and Rx evaluation boards and (b) measured BER (points) as a function of sourced laser power (lower x-axis) and average power at the receiver (upper x-axis, after 24 dB amplification by the SOA), as well as predicted BER based on the link model (continuous lines). The BER is given as a function of the sourced laser power, as it is the objective of this work to assess the compatibility of the link architecture with the capabilities of semiconductor MLLs. Given the sensitivity floor of the SiP Rx (−13 dBm at 14 Gbps, −9.7 dBm at 25 Gbps), the noise budget is completely dominated by ASE and RIN, and a substantial signal attenuation could be tolerated after the SOA prior to receiver noise playing a substantial role.