Work

Low mode-locking threshold induced by surface plasmon field enhancement of gold nanoparticles

Year: 2013

Type: article

Abstract: We demonstrate a novel method to reduce the mode-locking threshold of erbium-doped fiber laser (EDFL) based on saturable absorber (SA). The SA was prepared by mixing gold nanoparticles (GNPs) and single-wall carbon nanotubes in sodium carboxymethylcellulose. The mode-locking threshold of EDFL was adjusted through simple changing the concentration of GNPs in the SA. The variation range of the threshold was as large as 21.5 mW. A lowest threshold of ~16 mW was obtained with the concentration of GNPs as 0.006 mmol/ml. The largest decreased ratio of the initial threshold was 47.5%. Surface plasmon field enhancement effect was speculated as the main reason for the reduced mode-locking threshold.

Source: Optics Express

DOI: 10.1364/oe.21.027992

Authors: Tao Jiang, Zhe Kang, Guanshi Qin, Jun Zhou, Weiping Qin

Institutions: Jilin University, State Key Laboratory on Integrated Optoelectronics, Ningbo University

Language: English

Topic: Advanced Fiber Laser Technologies

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funder: National Natural Science Foundation of China