A best practice guide for assembling and testing a simple and inexpensive system feeding an optical fibre into a high pressure and temperature environment is presented. A standard Swagelok type connector is tested together with different ferrule materials and a PEEK capillary tube as feed-through. The system proofed to seal an optical fibre during several pressure and temperature cycling experiments up to 500 bar and 180{\deg}C.
Cite
@article{arxiv.1302.6412,
title = {Simple feed-through for coupling optical fibres into high pressure and temperature systems},
author = {Thomas Reinsch and Christian Cunow and Jörg Schrötter and Ronny Giese},
journal= {arXiv preprint arXiv:1302.6412},
year = {2013}
}