Broadband Passively Mode-Locked Fiber Laser with DNA Aqueous Solution as Saturable Absorber
| Autor: | Wonsuk Lee, Sang Bae Lee, Jeong Je Kim, Mijin Kim, Kwanil Lee, Dal-Young Kim |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science QH301-705.5 QC1-999 law.invention law Fiber laser Bandwidth (computing) General Materials Science Fiber ultrafast laser Biology (General) Instrumentation QD1-999 Fluid Flow and Transfer Processes mode-locking liquid phase business.industry Process Chemistry and Technology Physics General Engineering Saturable absorption DNA Laser Engineering (General). Civil engineering (General) Computer Science Applications Wavelength Chemistry Mode-locking saturable absorber Optoelectronics TA1-2040 business Pulse-width modulation |
| Zdroj: | Applied Sciences, Vol 11, Iss 9871, p 9871 (2021) Applied Sciences Volume 11 Issue 21 |
| ISSN: | 2076-3417 |
| Popis: | We demonstrate a passively mode-locked fiber laser using aqueous DNA solution as a saturable absorber (SA), with broadband pulse laser emission from 1 to 1.5 µm. The mode-locked laser with erbium-doped fiber as the gain material has a center wavelength of 1563 nm, a 3 dB bandwidth of 3.9 nm, and a pulse width of 822 fs, whereas the laser with ytterbium-doped fiber as the gain material and an identical DNA aqueous SA has a center wavelength of 1037 nm, a 3 dB bandwidth of 5.04 nm, and a pulse width of 250 ps. The proposed laser, which is simple and cost effective to fabricate, exhibits excellent long-term stability as well as thermal stability during high-power operation. This mode-locked laser scheme with a liquid-phase DNA component has the potential to provide in-depth understanding of the optical nonlinearity and usefulness of DNA. |
| Databáze: | OpenAIRE |
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