The aim of PHOTONICS TECHNOLOGY LETTERS (PTL) is ultimately to serve the photonics community. As such, it is with great delight I would like to introduce the second Special Issue of PTL, in which we address the area of optical MEMS and nanophotonics, in response to a demand from the community. As with the inaugural Special Issue which appeared in November 2012, this Special Issue has been linked to an IEEE Photonics Society conference, this time the International Conference on Optical MEMS and Nanophotonics. The timescales for this Special Issue have been demanding and with this in mind, I would like to thank those who made rapid publication possible, namely the guest editors, authors, and anonymous reviewers for ensuring prompt reviewing, and Sylvia Flores and Eileen McGuinness for ensuring prompt production of the final manuscripts. I hope you will find this Special Issue of interest and hence, without further ado, I would like to hand over to the guest editors for the Special Issue on Optical MEMS and Nanophotonics and thank you for your continued readership.