A micro-optics device has been developed to limit backreflection at the end face of single-mode fibers. The measured return loss at a wavelength of 1.55 m is as high as 28 dB. This device allows for preservation of the geometric aspect of a normally cut end-face fiber.
@article{arxiv.2402.12380,
title = {High return loss at the end face of fiber},
author = {Philippe Chanclou and Monique Thual and Jean Iostec},
journal= {arXiv preprint arXiv:2402.12380},
year = {2024}
}