Saturable absorber based on the fiber coupler coated by CNTs

Citation

Stoliarov, D. A., Itrin, P. A., Korobko, D. A., Ribenek, V. A., Tabulina, L. V., Sysa, A. V., & Shaman, Yu. P. (2021). Saturable absorber based on the fiber coupler coated by CNTs. Optical Fiber Technology, 63, 102524. doi: 10.1016/j.yofte.2021.102524

Keywords

• Fiber couplers
• Saturable absorbers
• Carbon nanotubes
• Fiber ring lasers

Brief

The article reports a new method for fabricating saturable absorbers based on carbon nanotube (CNT) coated fiber couplers, demonstrating their use as a mode-locking element to generate picosecond soliton pulses in a ring fiber laser configuration.

Summary

The paper introduces a new method to create a saturable absorber (SA) by coating carbon nanotubes (CNTs) onto a fiber coupler. This SA's key property is that its transmittance increases with increasing input radiation power, which is essential for mode-locking. They successfully used this CNT-coated fiber coupler SA as a mode-locking element in a ring fiber laser configuration to generate picosecond soliton pulses. The proposed method is described as a development of the microfiber taper technique, offering a simplified fabrication process and resulting in a mechanically stronger structure compared to standard microfibers.

Origin: https://sci.bban.top/pdf/10.1016/j.yofte.2021.102524.pdf#