Ultrafast photonics applications based on evanescent field interactions with 2D molybdenum carbide (Mo₂C)

Abstract

MXenes have attracted considerable attention for the generation of ultrafast pulsed lasers because of light-matter interactions and excellent saturable absorption characteristics. As a recently developed new member of the MXenes...

Generation of mode-locked pulses based on D-shaped fiber with CdTe as a saturable absorber in the C-band region

“…The SNR generated in this work was 67.7 dB. It is the highest SNR value compared to Mo 2 C, 73 graphite, 51 MoS 2 , 74 MoTe 2 , 75 PdS 2 , 76 MoSe 2 , 78 MgO, 77 Mxene (Ti 3 C 2 T x ) 79 and SnSe 2 , 80 which clearly indicate that this system is very stable. The pulse width generated using CdTe deposited on D-shaped fiber in this work was 0.77 ps, which was shorter compared to most of those reported in the selected literature studies presented in Table 1 .…”

“…As for the performance of the mode-locked pulses, the result of the current work showed that the generated center wavelength, 1559 nm, was comparable with that from other studies in the C-band region with the wavelength output of our result was slightly lower than that reported in ref. 51 , 73 , 74 , 75 , 76 and 77 but longer than those reported in ref. 78 , 79 and 80 .…”

“…The pulse width generated using CdTe deposited on D-shaped ber in this work was 0.77 ps, which was shorter compared to most of those reported in the selected literature studies presented in Table 1. It is worth noting that few reported works 51,73,74 generated lower pulse widths. This could be due to the lower net cavity dispersion.…”

Liquid-Phase Exfoliation of Ta2NiS5 and Its Application in Near-Infrared Mode-Locked Fiber Lasers with Evanescent Field Interactions and Passively Q-Switched Bulk Laser

“…Due to the limitation of experimental conditions, P-scan [34] and Z-scan [40] methods were used to measure the saturable absorption of the Ta 2 NiS 5 -SA. To investigate the nonlinear optical characteristics of the as-fabricated Ta 2 NiS 5 -SA at 1.5 µm, a balanced twindetector measurement system was employed (1550 nm, 600 fs, 7.36 MHz).…”

“…One way is to deposit the SA material on the fiber connector end facets as a film. The other (evanescent field interactions) is that the material might be deposited on tapered or side-polished fibers [34]. The combination method using side-polished fibers appears to have advantages over the method of depositing materials on the end face of the fiber connector.…”