Remember the news release from Apple last February (2015) regarding their plans to build 2 data centres in Europe, 1 in Ireland and 1 in Denmark.....
"The two data centres, each measuring 166,000 square metres, are expected to begin operations in 2017...."
Sure we don't have anywhere near enough information to link the Poet VCSEL, but it is an interesting time frame regarding our first product going to market.
https://www.apple.com/pr/library/2015/02/23Apple-to-Invest-1-7-Billion-in-New-European-Data-Centres.html