A Passively Q-Switched Holmium-Doped Fiber Laser with Graphene Oxide at 2058 nm
| Title: | A Passively Q-Switched Holmium-Doped Fiber Laser with Graphene Oxide at 2058 nm |
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| Authors: | Jinho Lee, Ju Han Lee |
| Source: | Applied Sciences, Vol 11, Iss 1, p 407 (2021) |
| Publisher Information: | MDPI AG, 2021. |
| Publication Year: | 2021 |
| Collection: | LCC:Technology LCC:Engineering (General). Civil engineering (General) LCC:Biology (General) LCC:Physics LCC:Chemistry |
| Subject Terms: | holmium-doped fiber, fiber laser, graphene oxide, saturable absorber, Q-switching, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999 |
| More Details: | This study reports a Q-switching-based, 2058-nm holmium (Ho) fiber laser incorporating a saturable absorber (SA) based on graphene oxide (GO). The SA was prepared with a side-polished fiber, while GO particles were deposited onto the fiber-polished surface to realize an all-fiber SA. A continuous-wave thulium-doped all-fiber laser, which was configured with a master-oscillator power-amplifier (MOPA) structure, was constructed as a pumping source. By inserting the fabricated SA into an all-fiber ring resonator based on 1-m length of Ho-doped fiber, Q-switched pulses could readily be obtained at a wavelength of 2058 nm. The pulse width was observed to vary from 2.01 to 1.56 μs as the pump power was adjusted from ~759 to 1072 mW, while the repetition rate was tunable from 45.56 to 56.12 kHz. The maximum values of average optical power and pulse energy were measured as ~11.61 mW and 207.05 nJ, respectively, at a ~1072 mW pump power. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2076-3417 |
| Relation: | https://www.mdpi.com/2076-3417/11/1/407; https://doaj.org/toc/2076-3417 |
| DOI: | 10.3390/app11010407 |
| Access URL: | https://doaj.org/article/16d1378f4df34aa98782c3f20fbe6bf7 |
| Accession Number: | edsdoj.16d1378f4df34aa98782c3f20fbe6bf7 |
| Database: | Directory of Open Access Journals |
| ISSN: | 20763417 |
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| DOI: | 10.3390/app11010407 |
| Published in: | Applied Sciences |
| Language: | English |