AI Article Synopsis
- * The study examines the broadband nonlinear optical absorption of chromium iodide (CrI) film, which shows good long-term stability and impressive absorption properties in the mid-infrared range.
- * Using CrI film, researchers achieved notable results with Er-doped fiber lasers, including a conventional soliton laser with a signal-to-noise ratio of 92.4 dB and a pulse width of 492 fs, indicating the potential for creating stable ultrafast optoelectronic devices.
Article Abstract
Highly stable pulsed fiber lasers are key optical components in optical communication, optical sensing, and precision micromachining systems due to the high beam quality, high peak power, and compact configurations. However, the available optical modulators in the fiber laser suffer from the operation bandwidth limitations and poor long-term physicochemical stability. Here, we have investigated the broadband nonlinear optical absorption behavior of the chromium iodide (CrI) film, which exhibits broadband saturable absorption towards the mid-infrared regime and excellent long-term stability. The conventional soliton fiber laser operating at telecom wavelength has been obtained from an Er-doped fiber laser (EDFL) utilizing CrI film with a signal-to-noise ratio (SNR) of 92.4 dB and a pulse width of 492 fs. In addition, a passively Q-switched operation around 2.8 μm has also been obtained from an Er-doped ZBLAN fiber laser (EDZFL) modulated by the CrI film with a SNR of 46.8 dB and a pulse width of 766 ns. The demonstration shows that the CrI film exhibits robust broadband optical modulation, and may make inroads for developing highly stable ultrafast optoelectronic devices.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11501328 | PMC |
| http://dx.doi.org/10.1515/nanoph-2023-0530 | DOI Listing |
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