Experimental study of a F8L using an automated adjustment system based on polarization control plates

M. R. Tapia-Garcia; S. G. Hernandez-Garcia; J. C. Hernandez-García; D. A. Razo-Medina; J. M. Estudillo-Ayala; O. Pottiez; J. D. Filoteo-Razo; J. P. Lauterio-Cruz; F. A. Gomez-Rodriguez; R. Rojas-Laguna

doi:10.1117/12.2647653

8 March 2023 Experimental study of a F8L using an automated adjustment system based on polarization control plates

M. R. Tapia-Garcia, S. G. Hernandez-Garcia, J. C. Hernandez-García, D. A. Razo-Medina, J. M. Estudillo-Ayala, O. Pottiez, J. D. Filoteo-Razo, J. P. Lauterio-Cruz, F. A. Gomez-Rodriguez, R. Rojas-Laguna

Author Affiliations +

Proceedings Volume 12400, Fiber Lasers XX: Technology and Systems; 124001K (2023) https://doi.org/10.1117/12.2647653
Event: SPIE LASE, 2023, San Francisco, California, United States

Conference Poster

Abstract

In this work, we present a temporal and spectral study of properties of a pulsed fiber laser in a figure-eight configuration (F8L) through the automatic adjustment of polarization controller plates. The experimental scheme consists of telecom fiber, a double-clad fiber doped with Er/Yb that allows higher power at the laser output, an optical isolator, a saturable absorber, and retarder plates. Automated polarization control system was developed using computer-aided design and additive manufacturing applied to each polarization stage within the fiber laser. The laser operation is automatically adjusted by means of an optical control system, composed of a quarter-wave retarder (QWR) to allow the self-starting operation, while the angles of the QWR, half-wave retarder (HWR), and QWR plates in the polarization controller allows to adjust the temporal duration of the pulses, as well as the spectral width at the laser output. The laser through automated adjustments on retarder plates generates an emission centered at ~1550 nm, with pulse durations between 189.5 ps to 350 ps (spectral widths between 13.4 nm and 53.4 nm), with repetition frequencies of 904 kHz, and it is possible to generate a supercontinuous spectrum of more than 250 nm. The emission obtained corresponds to noise-like pulse operation, which is very useful for the development of applications such as generation of harmonic mode locking pulses, supercontinuum with high flatness, and optical rogue waves, among others. Finally, the proposed study allows showing the advantages of self-adjusting the laser using automated control, with the aim of finding more precisely modes of operation of interest in multivariable systems.

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M. R. Tapia-Garcia, S. G. Hernandez-Garcia, J. C. Hernandez-García, D. A. Razo-Medina, J. M. Estudillo-Ayala, O. Pottiez, J. D. Filoteo-Razo, J. P. Lauterio-Cruz, F. A. Gomez-Rodriguez, and R. Rojas-Laguna "Experimental study of a F8L using an automated adjustment system based on polarization control plates", Proc. SPIE 12400, Fiber Lasers XX: Technology and Systems, 124001K (8 March 2023); https://doi.org/10.1117/12.2647653

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