Research output: Contribution to journal › Article › peer-review
Femtosecond 78-nm Tunable Er:Fibre Laser Based on Drop-Shaped Resonator Topology. / Nyushkov, Boris; Kobtsev, Sergey; Antropov, Aleksandr et al.
In: Journal of Lightwave Technology, Vol. 37, No. 4, 8613769, 15.02.2019, p. 1359-1363.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Femtosecond 78-nm Tunable Er:Fibre Laser Based on Drop-Shaped Resonator Topology
AU - Nyushkov, Boris
AU - Kobtsev, Sergey
AU - Antropov, Aleksandr
AU - Kolker, Dmitry
AU - Pivtsov, Viktor
N1 - Publisher Copyright: © 1983-2012 IEEE.
PY - 2019/2/15
Y1 - 2019/2/15
N2 - We report for the first time on study of a passively mode-locked Er-doped fibre laser with ultra-wide tuning (from 1524 to 1602 nm) of the central wavelength of its femtosecond output (503-940 fs). The recently proposed drop-shaped cavity topology for fibre lasers enabled a compact widely tuneable femtosecond laser with a single discrete element, a reflective diffraction grating used for wavelength tuning of the output radiation. The key features of the proposed laser are: spectral tuning does not require adjustment of any other cavity elements; stable generation with a single pulse per round trip is provided over the entire wavelength tuning range; and the output pulses are close to transform limited and feature relatively high (>58 dB) signal-to-noise ratio of laser inter-mode beats indicating high quality of mode locking across the entire wavelength tuning range. The proposed laser configuration relying on the new drop-shaped cavity topology simultaneously delivers stability and reliability of mode locking, possibility of broad-range wavelength tunability, and adjustability of the output pulse repetition rate of the laser (which is important in various metrological and other applications).
AB - We report for the first time on study of a passively mode-locked Er-doped fibre laser with ultra-wide tuning (from 1524 to 1602 nm) of the central wavelength of its femtosecond output (503-940 fs). The recently proposed drop-shaped cavity topology for fibre lasers enabled a compact widely tuneable femtosecond laser with a single discrete element, a reflective diffraction grating used for wavelength tuning of the output radiation. The key features of the proposed laser are: spectral tuning does not require adjustment of any other cavity elements; stable generation with a single pulse per round trip is provided over the entire wavelength tuning range; and the output pulses are close to transform limited and feature relatively high (>58 dB) signal-to-noise ratio of laser inter-mode beats indicating high quality of mode locking across the entire wavelength tuning range. The proposed laser configuration relying on the new drop-shaped cavity topology simultaneously delivers stability and reliability of mode locking, possibility of broad-range wavelength tunability, and adjustability of the output pulse repetition rate of the laser (which is important in various metrological and other applications).
KW - Fibre lasers
KW - laser cavity resonators
KW - laser mode locking
KW - laser tuning
UR - http://www.scopus.com/inward/record.url?scp=85062872299&partnerID=8YFLogxK
U2 - 10.1109/JLT.2019.2893291
DO - 10.1109/JLT.2019.2893291
M3 - Article
AN - SCOPUS:85062872299
VL - 37
SP - 1359
EP - 1363
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
SN - 0733-8724
IS - 4
M1 - 8613769
ER -
ID: 18863018