Nanosecond pulse generation in a passively Q-switched Yb-doped fiber laser by Cr/sup 4+/:YAG saturable absorber

2006 ◽  
Vol 18 (6) ◽  
pp. 764-766 ◽  
Author(s):  
M. Laroche ◽  
H. Gilles ◽  
S. Girard ◽  
N. Passilly ◽  
K. Ait-Ameur
Keyword(s):  
Fiber Laser ◽  
Saturable Absorber ◽  
Pulse Generation ◽  
Nanosecond Pulse

Q-SWITCHED THULIUM-DOPED FIBER LASER AT 2 MICRON REGION BY 802 NM PUMPING

2015 ◽  
Vol 74 (8) ◽  
Author(s):  
A. A. Latiff ◽  
M. T. Ahmad ◽  
Z. Zakaria ◽  
H. Ahmad ◽  
S. W. Harun
Keyword(s):  
Carbon Nanotubes ◽  
Pump Power ◽  
Fiber Laser ◽  
Saturable Absorber ◽  
Pulse Width ◽  
Laser Cavity ◽  
Pulse Generation ◽  
Q Switching ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

An 1892.4 nm ultrafast passive Q-switched fiber laser is demonstrated by using Thulium-doped fiber (TDF) in conjunction with a multi-walled carbon nanotubes (MWCNTs) as a saturable absorber (SA). The MWCNTs film is sandwiched between two FC/PC fiber connectors and integrated into the laser cavity with 802 nm pump for Q-switching pulse generation. The pulse repetition rate can be tuned from 3.8 to 4.6 kHz while the corresponding pulse width reduces from 22.1 to 18.4 μs as the pump power is increased from 187.3 to 194.2 mW. A higher performance Q-switched Thulium-doped fiber laser (TDFL) is expected to be achieved with the optimization of the MWCNT-SA saturable absorber and laser cavity.

Few-layer silicene nanosheets as saturable absorber for subpicosecond pulse generation in all-fiber laser

2020 ◽  
Vol 131 ◽  
pp. 106397 ◽  
Author(s):  
Guowei Liu ◽  
Junjie Yuan ◽  
Yudong Lyu ◽  
Tiange Wu ◽  
Zongwen Li ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Saturable Absorber ◽  
Pulse Generation

scholarly journals Fe3O4 nanoparticles as a saturable absorber for giant chirped pulse generation

2019 ◽  
Vol 10 ◽  
pp. 1065-1072 ◽  
Author(s):  
Ji-Shu Liu ◽  
Xiao-Hui Li ◽  
Abdul Qyyum ◽  
Yi-Xuan Guo ◽  
Tong Chai ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Saturable Absorber ◽  
Medical Science ◽  
Spectral Width ◽  
Pulse Generation ◽  
Optical Modulators ◽  
Nanosecond Pulses ◽  
Photonic Material ◽  
Photoconductive Detectors ◽  
Ultrafast Photonics

Fe3O4 nanoparticles (FONPs) are magnetic materials with a small band gap and have well-demonstrated applications in ultrafast photonics, medical science, magnetic detection, and electronics. Very recently, FONPs were proposed as an ideal candidate for pulse generation in fiber-based oscillators. However, the pulses obtained to date are on the order of microseconds, which is too long for real application in communication. Here, we report the use of FONPs synthesized by a sol–hydrothermal method and used as a saturable absorber (SA) to achieve nanosecond pulses in an erbium-doped fiber laser (EDFL) for the first time. The proposed fiber laser is demonstrated to have a narrow spectral width of around 0.8 nm and a fixed fundamental repetition rate (RPR) of 4.63 MHz, whose spectra and pulse dynamics are different from the mode-locked lasers reported previously. It is demonstrated that the proposed fiber laser based on a FONP SA operates in the giant-chirp mode-locked regime. The most important result is the demonstration of a pulse duration of 55 ns at an output power of 16.2 mW, which is the shortest pulse based on FONPs for EDFLs reported to date. Our results demonstrate that the FONP dispersion allows for an excellent photonic material for application in ultrafast photonics devices, photoconductive detectors, and optical modulators.

Generation of 35-nJ Nanosecond Pulse From a Passively Mode-Locked Tm, Ho-Codoped Fiber Laser With Graphene Saturable Absorber

2013 ◽  
Vol 25 (15) ◽  
pp. 1447-1449 ◽  
Author(s):  
Bo Fu ◽  
Lili Gui ◽  
Xiao Li ◽  
Xiaosheng Xiao ◽  
Hongwei Zhu ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Saturable Absorber ◽  
Nanosecond Pulse ◽  
Graphene Saturable Absorber

scholarly journals Generation of stable mode-locked fiber laser based MWCNTs in 1.5-µm waveband

2021 ◽  
Vol 2075 (1) ◽  
pp. 012008
Author(s):  
M A Mat Salim ◽  
M A Ismail ◽  
M Z A Razak ◽  
Saaidal R. Azzuhri ◽  
H Bakhtiar ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Saturable Absorber ◽  
Room Temperature ◽  
Research Study ◽  
Laser Cavity ◽  
Pulse Generation ◽  
Stable Operation ◽  
Reliable System ◽  
Stable Mode ◽  
Multi Wall Carbon Nanotubes

Abstract Pulses fiber laser had been successfully generated by using multi-wall carbon nanotubes thin film saturable absorber at room temperature. The saturable absorber is incorporated into a ring laser cavity. A stable Kelly sidebands mode-locked pulse spectrum with 1561.3 nm wavelength at the pump power of 86.8 mW. The repetition rate and pulse width of 12.3 MHz and 0.51 picosecond, respectively. A stable operation is observed for an hour at room temperature. These simple and reliable system features offer interesting research study especially in mode-locked pulse generation at 1.5 μm waveband.

PbS nanoparticles saturable absorber for ultrafast pulse generation in 2-µm fiber laser

2019 ◽  
Vol 45 (1) ◽  
pp. 161
Author(s):  
Xinxing Liu ◽  
Xiaohui Li ◽  
Yulong Tang ◽  
Shuaiyi Zhang
Keyword(s):  
Fiber Laser ◽  
Saturable Absorber ◽  
Pulse Generation ◽  
Pbs Nanoparticles ◽  
Ultrafast Pulse Generation ◽  
Ultrafast Pulse
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