Details

Autor(en) / Beteiligte

• Anzueto-Sánchez, G.
• Martínez-Rios, A.
• Torres-Gómez, I.
• Jiménez-Mares, M.
• Nuñez-Gomez, R.E.
• Camas-Anzueto, J.L.
• Cabellos-Quiroz, J.L.

Titel

Multiwavelength synchronously Q-switched Erbium-doped fiber laser based on the adjustment of the free spectral range of an intracavity tapered-fiber filter

Ist Teil von

• Optics and laser technology, 2021-10, Vol.142, p.107197, Article 107197

Ort / Verlag

Kidlington: Elsevier Ltd

Erscheinungsjahr

2021

Quelle

Elsevier ScienceDirect Journals

Beschreibungen/Notizen

• •Experimental demonstration of a multiwavelength synchronously Q-switched Erbium-doped fiber laser.•We demonstrate dual and triple lasing sets around 1530 nm with interchangeable separation of 1.7, 2.1, and 2.5 nm.•A shorth piece of Tm:Ho codoped fiber is the saturable absorber.•The length of FSA is not crucial to determine the separation between lasing lines.•An intracavity tapered optical fiber filter allows the versatile process of wavelength filtering. All-fiber multiwavelength Q-switched (MWQS) lasers are of huge interest because of their emergent and well-known scientific and technological applications. Passive all-fiber MWQS lasers require a saturable absorber to generate Q-switched pulses and an optical filter to seed the multiwavelength regime. New trends in all-fiber MWQS lasers demand new devices to explore innovative configurations and capabilities in this kind of lasers. In this sense, we report on the experimental demonstration of a multiwavelength synchronously Q-switched Erbium-doped fiber laser (QSEDFL). This laser achieves dual and triple wavelength lasing around 1530 nm with interchangeable wavelength separation. A shorth piece of Tm:Ho co-doped fiber is the saturable absorber. An intracavity tapered optical fiber filter in a double-pass configuration allows the versatile process of wavelength filtering, enabling the adjustment of wavelength lasing separation between 1.7 nm, 2.1 nm, and 2.5 nm with synchronized pulses of each wavelength component. This proposal offers a new route to all-fiber multiwavelength synchronously Q-switched laser with potential applications for WDM systems and all-fiber sensors.