Roberto Rojas-Laguna

TL;DR: In this article, a temperature sensor based on a fiber ring laser is presented, where a fiber Bragg grating was used as a sensor head, and a Mach-Zehnder interferometer (MZI) was utilized as a wavelength selective filter to enhance the temperature sensing capability.

TL;DR: A 215-m-long figure-of-eight fiber laser including a double-clad erbium-ytterbium fiber and a nonlinear optical loop mirror based on nonlinear polarization evolution is studied, showing enhanced performances related to the absence of a polarizer in the present setup.

TL;DR: High dynamic range with controllable transmissivity, and good stability over long times, is demonstrated using a NOLM device using a symmetrical coupler, highly twisted fiber, and a quarter-wave retarder plate introducing a polarization asymmetry in the loop.

TL;DR: An all-fiber Mach-Zehnder interferometer (MZI) based on a non-zero dispersion-shifted fiber (NZ-DSF) is presented and can be implemented in a compact size and low cost.

TL;DR: In this paper, a pH optical fiber sensor with pH sensitive dye is described, which is prepared by fixing the doped plastic fiber on a fused ortosilica block surface with blue bromophenol.