Wavelength tunable Q-switched Er-doped fiber laser based on ZrSe2

•Passively Q-switched Er-doped fiber laser (PQ EDFL) based on the ZrSe2/PVA film.•Modulation depth and saturation intensity of ZrSe2/PVA SA about 31% and 4.75 MW/cm2.•Wavelength tunable PQ EDFL from 1544.3 to 1563.5 nm by means of invisible filter. We demonstrated a passively Q-switched Er-doped fib...

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Bibliographic Details
Published in:Optics and laser technology 2022-03, Vol.147, p.107598, Article 107598
Main Authors: Peng, Hsin-Ju, Li, Zhen-Ying, Tsay, Shwu-Yun, Song, Yu-Feng, Zhang, Han, Lin, Ja-Hon
Format: Article
Language:English
Subjects:
2D material
Doped fibers
Fiber lasers
Invisible filter
Laser applications
Liquid phases
Passively Q-switched fiber laser
Platelets
Polarizers
Q switched lasers
Tunable lasers
Tuning
Wavelength tunable
Zirconium diselenide
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Summary:•Passively Q-switched Er-doped fiber laser (PQ EDFL) based on the ZrSe2/PVA film.•Modulation depth and saturation intensity of ZrSe2/PVA SA about 31% and 4.75 MW/cm2.•Wavelength tunable PQ EDFL from 1544.3 to 1563.5 nm by means of invisible filter. We demonstrated a passively Q-switched Er-doped fiber laser based on the ZrSe2/PVA film. Here, the layer structure ZrSe2 platelets were produced by the liquid-phase exfoliation method. By means of nonlinear optical transmittance measurement, the modulation depth and saturation intensity of the ZrSe2/PVA SA were 31% and 4.75 MW/cm2, respectively. The Q-switched pulses revealed the highest repetition rate and pulse energy around 43.7 kHz and 139.8 nJ with the pump power at 346 mW. Based on the invisible filter, we produced the wavelength-tunable and dual-wavelength Q-switched pulses after insertion of the in-line polarizer inside the cavity. Through the proper adjustment of the polarization controller, a tuning wavelength of from 1544.3 to 1563.5 nm, a tuning range of around 19.2 nm, and the smallest tuning interval of around 1 nm have been achieved.
ISSN:0030-3992
1879-2545
DOI:10.1016/j.optlastec.2021.107598