Abstract

An experimental study was conducted on a figure-eight fiber laser (F8L), capable of precisely tuning a specific operating regime through the design of an automated polarization control (PC). The base signal of interest is a pulsed signal with a repetition rate of ∼950 kHz and an overall pulse duration of ∼10 ns. To modify the system state, the polarization controller boards are automatically controlled, allowing the transmission of the Nonlinear Optical Loop Mirror (NOLM) to be varied using a developed motorized board design. The system state was monitored temporally using a Keysight 6000X series programmable oscilloscope (MSOX6004A) and spectrally using an optical spectrum analyzer (Advantest Q8347). Tests were performed to evaluate the performance of the control system by searching for pulse locking regions, achieving an average pulsed regime acquisition time of ∼11 seconds. Identifying and storing operating regions of interest by scanning the automated PC design, this allows for self-positioning of the retarder plates through feedback from a real-time temporal-spectral measurement system. This demonstrates that the proposed control module has applications in the control, characterization, and self-ignition of ultrafast pulsed laser systems.

Biography

Maximino Roberto Tapia Garcia is affiliated with University of Guanajuato, Mexico. His academic work contributes to research and education, supporting scientific development and innovation in his field of study.