Broadband supercontinuum generation with femtosecond pulse width in erbium-doped fiber laser (EDFL)

Laser Physics ◽  
2016 ◽  
Vol 26 (11) ◽  
pp. 115102 ◽  
Author(s):  
S N M Rifin ◽  
M Z Zulkifli ◽  
S N M Hassan ◽  
Y Munajat ◽  
H Ahmad
Keyword(s):  
Fiber Laser ◽  
Pulse Width ◽  
Femtosecond Pulse ◽  
Supercontinuum Generation ◽  
Erbium Doped

scholarly journals Highly Stable Passively Q-Switched Erbium-Doped All-Fiber Laser Based on Niobium Diselenide Saturable Absorber

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4303
Author(s):  
Ping Hu ◽  
Jiajia Mao ◽  
Hongkun Nie ◽  
Ruihua Wang ◽  
Baitao Zhang ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Saturable Absorber ◽  
Pulse Width ◽  
Nonlinear Optical ◽  
Modulation Depth ◽  
Transition Metal Dichalcogenide ◽  
Center Wavelength ◽  
Niobium Diselenide ◽  
Erbium Doped ◽  
Layered Transition Metal

A saturable absorber (SA) based on niobium diselenide (NbSe2), which is a layered transition metal dichalcogenide (TMD) in the VB group, is fabricated by the optically driven deposition method, and the related nonlinear optical properties are characterized. The modulation depth, saturable intensity, and nonsaturable loss of the as-prepared NbSe2 nanosheet-based SA are measured to be 16.2%, 0.76 MW/cm2, and 14%, respectively. By using the as-fabricated NbSe2 SA, a highly stable, passively Q-switched, erbium-doped, all-fiber laser is realized. The obtained shortest pulse width is 1.49 μs, with a pulse energy of 48.33 nJ at a center wavelength of 1560.38 nm. As far as we know, this is the shortest pulse duration ever obtained by an NbSe2 SA in a Q-switched fiber laser.

scholarly journals Graphene slurry based passive Q-switcher in erbium doped fiber laser

2019 ◽  
Vol 8 (4) ◽  
Author(s):  
Siti Nur Fatin Zuikafly ◽  
Nor Farhah Razak ◽  
Rizuan Mohd Rosnan ◽  
Sulaiman Wadi Harun ◽  
Fauzan Ahmad
Keyword(s):  
Pump Power ◽  
Fiber Laser ◽  
Pulse Width ◽  
Peak Power ◽  
Signal To Noise Ratio ◽  
Pulsed Laser ◽  
Laser Cavity ◽  
Signal To Noise ◽  
Maximum Pulse Energy ◽  
Erbium Doped

In this work, a Graphene slurry based passive Q-switcher fabricated from Graphene-Polylactic acid (PLA) filament which is used for 3D printing. To produce the Graphene slurry, the diameter of the filament was reduced and Tetrahydrofuran (THF) was used to dissolve the PLA. The Graphene-THF suspension was drop cast to the end of a fiber ferrule and the THF then evaporated to develop Graphene slurry based SA which is integrated in fiber laser cavity. At threshold input pump power of 30.45 mW, a Q-switched Erbium-doped fiber laser (EDFL) can be observed with the wavelength centered at 1531.01 nm and this remained stable up to a pump power of 179.5 mW. As the pump power was increased gradually, an increase in the repetition rates was recorded from 42 kHz to 125 kHz, while the pulse width was reduced to 2.58 μs from 6.74 μs. The Q-switched laser yielded a maximum pulse energy and peak power of 11.68 nJ and 4.16 mW, respectively. The proposed Graphene slurry based saturable absorber also produced a signal-to-noise ratio of 44 dB indicating a stable Q-switched pulsed laser.

scholarly journals Passively Q-switched Erbium-Doped Fiber Laser based on Graphene Oxide as Saturable Absorber

2018 ◽  
Vol 39 (3) ◽  
pp. 307-310 ◽  
Author(s):  
A. K. W. Mansoor ◽  
Belal Ahmed Hamida ◽  
Tawfig Eltaif ◽  
E. I. Ismail ◽  
N. A. A. Kadir ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Fiber Laser ◽  
Saturable Absorber ◽  
Pulse Width ◽  
Laser Cavity ◽  
Experimental Results ◽  
Laser Output ◽  
Output Energy ◽  
Erbium Doped

Abstract In this paper, passively Q-switched fiber laser is demonstrated and the laser output energy is stabilized by using 2.4 m Erbium-doped fiber laser (EDFL) with a graphene oxide used as saturable absorber (GO-SA). According to the experimental results in the Q-switched configuration, the laser cavity emits a wavelength centered at 1,558.75 nm, and by inserting the GO-SA into EDFL cavity, hence, the laser output energy around 1.68 nJ with an FWHM pulse width of 2.3 µs at 123.5 kHz was achieved.

scholarly journals Spectrally Flat Supercontinuum Generation in a ZBLAN Fiber Pumped by Erbium-Doped Mode-Locked Fiber Laser

2019 ◽  
Vol 9 (4) ◽  
pp. 302-308 ◽  
Author(s):  
Huanhuan Liu ◽  
Ye Yu ◽  
Wei Song ◽  
Qiao Jiang ◽  
Fufei Pang ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Supercontinuum Generation ◽  
Erbium Doped

scholarly journals Flat supercontinuum generation pumped by amplified noise-like pulses from a figure-eight erbium-doped fiber laser

2017 ◽  
Vol 14 (10) ◽  
pp. 105104 ◽  
Author(s):  
E Hernández-Escobar ◽  
M Bello-Jiménez ◽  
O Pottiez ◽  
B Ibarra-Escamilla ◽  
R López-Estopier ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Supercontinuum Generation ◽  
Erbium Doped

Noise-like pulse erbium-doped fiber laser for supercontinuum generation

Optik ◽  
2018 ◽  
Vol 158 ◽  
pp. 215-219
Author(s):  
Kai Qian ◽  
Zhaochang Gu ◽  
Jian Xu ◽  
Xiaojie Dong ◽  
Weichuang Yu ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Supercontinuum Generation ◽  
Erbium Doped

Q-switched erbium-doped fiber laser using multi-layer graphene based saturable absorber

2014 ◽  
Vol 23 (01) ◽  
pp. 1450009 ◽  
Author(s):  
N. Kasim ◽  
C. L. Anyi ◽  
H. Haris ◽  
F. Ahmad ◽  
N. M. Ali ◽  
...  
Keyword(s):  
Pump Power ◽  
Fiber Laser ◽  
Saturable Absorber ◽  
Pulse Width ◽  
Ring Cavity ◽  
Sodium Dodecyl ◽  
Graphene Film ◽  
Free Standing ◽  
Layer Graphene ◽  
Erbium Doped

The performance of a stable passive Q-switched Erbium Ytterbium co-doped fiber laser (EYFL) operating at 1532.5 nm is demonstrated using a multi-layer graphene film based saturable absorber. The graphene is synthesized by electrochemical exfoliation of graphite at room temperature in 1% sodium dodecyl sulphate (SDS) aqueous solution. Graphene flakes obtained from the process are mixed with polyethylene oxide (PEO) as the host polymer to produce free standing composite thin film which acts as a passive Q-switcher in the EYFL ring cavity. At 980 nm pump power of 44 mW, the EYFL generates optical pulse train with a repetition rate of 12.33 kHz and pulse width of 9.36 μs. The highest energy of 5.8 nJ and the lowest pulse width of 2.68 μs are achieved at the maximum pump power of 78 mW. Further increase in the pump power is expected to further improve both the pulse energy and pulse width.

scholarly journals Q-switched Erbium Doped Fiber Laser Incorporating Antimony (III) Telluride in Polyvinyl Alcohol as Saturable Absorber

2018 ◽  
Vol 10 (2) ◽  
pp. 409
Author(s):  
Ezzatul Irradah Ismail ◽  
S Muhammad Ashraf Zolkopli ◽  
Muhammad Quisar Lokman ◽  
Hafizal Yahaya ◽  
Sulaiman Wadi Harun ◽  
...  
Keyword(s):  
Pump Power ◽  
Fiber Laser ◽  
Saturable Absorber ◽  
Pulse Width ◽  
Signal To Noise Ratio ◽  
Laser Generation ◽  
High Signal ◽  
Signal To Noise ◽  
Center Wavelength ◽  
Erbium Doped

<span lang="EN-US">In this paper, we demonstrated a Q-switched erbium doped fiber laser (EDFL) incorporating Antimony (III) Telluride (Sb<sub>2</sub>Te<sub>3</sub>) in polyvinyl alchohol (PVA) as passive saturable absorber.  The saturable absorber were fabricated by dissolving Antimony (III) Telluride powder into PVA solution and dry in the ambient temperature for 48 hours. Then, 1 mm<sup>2</sup> x 1 mm<sup>2</sup> Sb<sub>2</sub>Te<sub>3</sub>-PVA film based saturable absorber were sandwiched in between FC/PC ferrule for Q-switched laser generation. The stable and self-started Q-switched laser operates at center wavelength 1560 nm with 3 dB bandwidth of 0.23 nm. The laser operates at pump power of 29.3 mW until 84.9 mW with repetition rate of 20.99 kHz to 89.29 kHz and pulse width of 13.95 µs to 5.10 µs. At maximum pump power, the laser able to achieve pulse energy of 62.72 nJ and high signal to noise ratio of 71.4</span>

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