Nanojoule-energy-level, polarization-maintaining, dissipative-soliton mode-locked thulium fiber laser at 1876 nm
Year: 2025
Type: article
Abstract: We report an environmentally robust, dissipative-soliton, mode-locked Tm-doped fiber laser operating in the short-wavelength infrared region at 1876 nm, using all-polarization-maintaining (all-PM) fibers. Self-starting, mode-locked operation is enabled by a single-wall carbon nanotube (SWNT) based saturable absorber (SA). Cavity dispersion is managed by using a commercially available PM dispersion compensating fiber (DCF). A PM fiber Lyot filter enables dissipative-soliton mode locking at a central wavelength of 1876 nm. The laser generates stable pulses at a repetition rate ∼ 19.2 MHz with an average power ∼ 21.5 mW, corresponding to a pulse energy ∼ 1.1 nJ. The output pulse has a duration of 4.2 ps and can be compressed down to 391 fs using a grating-based compressor. A higher pulse energy ∼ 3.2 nJ can be obtained with a compressed pulse width of 566 fs by varying the net cavity dispersion. To the best of our knowledge, this is the first nJ-energy-level, all-fiberized PM dissipative-soliton mode-locked Tm-doped fiber laser based on SWNT, with potential for applications in high-penetration nonlinear biomedical imaging microscopy.
Source: Optics & Laser Technology
Authors: Panuwat Srisamran, Ibrahim Abughazaleh, Matthew Gerard, Duanyang Xu, Yongmin Jung, Jing He, Jeremiah Marcellino, Boyang Mao, Andrea C. Ferrari, David Richardson, Lin Xu
Institutions: University of Southampton, University of Cambridge
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,230
Awards: Transformative Imaging for Quantitative Biology (TIQBio) Partnership, Layered Materials Research Foundry, Engineering van der Waals heterostructures: from atomic level layer-by-layer assembly to printable innovative devices, Graphene Flexible Electronics and Optoelectronics, Metal Atoms on Surfaces & Interfaces (MASI) for Sustainable Future, EPSRC Centre for Doctoral Training in Graphene Technology, AirGuide Photonics, Graphene Flexible Electronics and Optoelectronics: Bridging The Gap Between Academia and Industry, Lighting the Way to a Healthy Nation - Optical 'X-rays' for Walk Through Diagnosis & Therapy, EPSRC Centre for Doctoral Training in 2D Materials of Tomorrow (2DMoT)
OpenAlex ID: W4409784566