Photonic devices that include in-line optical microfibers for different uses such as sensing are described. The adapter includes a tip-ring-sleeve type interface connector configured to accept a plug from a standard mobile phone headset. The present invention provides facilities which support the plugging in or functionality of formatters in any given wire format for transferring across a connection or between processes. Bearings are provided on at least one of the clamping heads and on the guide element.