Femtosecond-pulsed laser micromachining and optical damage by an erbium-doped fiber-laser system

2011 ◽  
Vol 88 (8) ◽  
pp. 2334-2337 ◽  
Author(s):  
Toru Mizunami ◽  
Akimasa Ehara
Keyword(s):  
Fiber Laser ◽  
Laser System ◽  
Pulsed Laser ◽  
Laser Micromachining ◽  
Optical Damage ◽  
Erbium Doped ◽  
Femtosecond Pulsed 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.

Fabrication of diffraction grating in polydimethylsiloxane using femtosecond-pulsed laser micromachining

2010 ◽  
Vol 87 (5-8) ◽  
pp. 1344-1347 ◽  
Author(s):  
Tien-Li Chang ◽  
Shao-Wei Luo ◽  
Han-Ping Yang ◽  
Chi-Hung Lee
Keyword(s):  
Diffraction Grating ◽  
Pulsed Laser ◽  
Laser Micromachining ◽  
Femtosecond Pulsed Laser

scholarly journals Femtosecond pulsed laser micromachining of glass substrates with application to microfluidic devices

2004 ◽  
Vol 43 (23) ◽  
pp. 4584 ◽  
Author(s):  
Malalahalli S. Giridhar ◽  
Kibyung Seong ◽  
Axel Schülzgen ◽  
Pramod Khulbe ◽  
Nasser Peyghambarian ◽  
...  
Keyword(s):  
Pulsed Laser ◽  
Microfluidic Devices ◽  
Laser Micromachining ◽  
Glass Substrates ◽  
Femtosecond Pulsed Laser

scholarly journals Surface damage and threshold determination of Ge–As–Se glasses in femtosecond pulsed laser micromachining

2020 ◽  
Vol 104 (3) ◽  
pp. 1614-1614
Author(s):  
Wenqiang Ma ◽  
Leilei Wang ◽  
Peiqing Zhang ◽  
Yinsheng Xu ◽  
Liang Zhu ◽  
...  
Keyword(s):  
Pulsed Laser ◽  
Surface Damage ◽  
Laser Micromachining ◽  
Threshold Determination ◽  
Femtosecond Pulsed Laser

Effect of Attenuation on Four-Wave Mixing Generation

2011 ◽  
Vol 378-379 ◽  
pp. 748-751
Author(s):  
M.A. Nizam ◽  
N. Arsad ◽  
Hanim Abdul Razak ◽  
S. Shaari ◽  
A.E. Annuar ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Fiber ◽  
Fiber Laser ◽  
Laser System ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Lasing Wavelength ◽  
Crystal Fiber ◽  
Variable Optical Attenuator ◽  
Erbium Doped

Four-wave mixing (FWM) phenomenon can be produced by using a different refractive index of the optical fiber in an erbium doped fiber laser system. In our study, we used a 20 meter length of Photonics crystal fiber (PCF) to generate multiwavelength signals. Variable optical attenuator is employed in the setup to study its effect on the output signals. Results show that uniform signals were obtained by using the VOA to suppress other modes of wavelengths which occurred before placing the VOA. New lasing wavelength at 1530.445 nm, 1531.450 nm, 1531.960 and 1532.415 nm were produced uniformly.

scholarly journals Erbium-doped chalcogenide glass thin film on silicon using femtosecond pulsed laser with different deposition temperatures

2018 ◽  
Vol 125 (1) ◽  
Author(s):  
K. S. Albarkaty ◽  
E. Kumi-Barimah ◽  
C. Craig ◽  
D. Hewak ◽  
G. Jose ◽  
...  
Keyword(s):  
Thin Film ◽  
Chalcogenide Glass ◽  
Pulsed Laser ◽  
Erbium Doped ◽  
Femtosecond Pulsed Laser

Photo-annealing effect of gamma-irradiated erbium-doped fibre by femtosecond pulsed laser

2013 ◽  
Vol 46 (49) ◽  
pp. 495113 ◽  
Author(s):  
Sheng Hsiung Chang ◽  
Ren-Young Liu ◽  
Chu-En Lin ◽  
Fong-In Chou ◽  
Chao-Yi Tai ◽  
...  
Keyword(s):  
Pulsed Laser ◽  
Annealing Effect ◽  
Erbium Doped ◽  
Gamma Irradiated ◽  
Femtosecond Pulsed Laser
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