Results 11 to 20 of about 1,168,263 (300)

Highly coherent picosecond pulse generation with sub-ps jitter and high SMSR by gain switching Discrete Mode laser diodes at 10 GHz line rate [PDF]

, 2009
We demonstrate the generation of picosecond pulses with ~800 fs jitter and SMSR in excess of 60 dB by gain switching a discrete mode laser and compare the results with a commercial DFB ...
Anandarajah, Prince M., Barry, Liam P., Herbert, C., O'Carroll, John, Duke, A.S., Kaszubowska-Anandarajah, Aleksandra, Phelan, Richard, O'Gorman, James   +7 more
core   +2 more sources

High-power supercontinuum generation with picosecond pulses [PDF]

, 2010
We investigate both theoretically and experimentally the properties of supercontinuum generation in the nearinfrared and visible regimes using high-power picosecond pulses propagating in a photonic crystal optical fiber. We discuss the effect of the pump
Horak, P., Shaif-ul Alam, Sonali Dasgupta, David J. Richardson, Kang Kang Chen, Dasgupta, S., Peter Horak, Richardson, D.J., Chen, K.K., Alam, S.-U.   +9 more
core   +2 more sources

Developments of Space Debris Laser Ranging Technology Including the Applications of Picosecond Lasers

Applied Sciences, 2021
Debris laser ranging (DLR) is receiving considerable attention as an accurate and effective method of determining and predicting the orbits of space debris.
Haifeng Zhang, Mingliang Long, Huarong Deng, Shaoyu Cheng, Zhibo Wu, Zhongping Zhang, Ali Zhang, Jiantao Sun   +7 more
doaj   +1 more source

100W fiberised linearly-polarized picosecond ytterbium doped fiber MOPA [PDF]

, 2009
We report a PM, fully-fiberised, picosecond fiber MOPA delivering 20 ps pulses at repetition rates up to 970 MHz and at average powers of up to 100 ...
Andrew Malinowski, Chen, Kang Kang, Shaif-ul Alam, Dejiao Lin, Lin, Dejiao, David J. Richardson, Kangkang Chen, Malinowski, Andrew, Richardson, David J., Alam, Shaif-ul   +9 more
core   +2 more sources

All-Polarization-Maintaining, Mode-Locking Fiber Front-End Laser Delivering Both the Picosecond Seed Laser and the Femtosecond Seed Laser

Photonics, 2023
An ytterbium-doped, mode-locking fiber front-end laser, delivering both a femtosecond seed laser and picosecond seed laser, was demonstrated. The fundamental repetition rate of the 1031 nm mode-locked laser was 32.77 MHz, realized with the all ...
Yinuo Zhang, Hao Zhang, Kong Gao, Wenchao Qiao, Tianli Feng, Xian Zhao, Yizhou Liu   +6 more
doaj   +1 more source

Generation of widely tunable picosecond pulses with large SMSR by externally injecting a gain-switched dual laser source [PDF]

, 2004
The authors demonstrate a procedure of generating picosecond optical pulses that are tunable over a wide wavelength range (65 nm) and have very high spectral purity side-mode suppression ratio [(SMSR)>60 dB].
Anandarajah, Prince M., Barry, Liam P., Clarke, Aisling M.   +2 more
core   +2 more sources

Experimental Investigations on Laser Ablation of Aluminum in Sub-Picosecond Regimes

Applied Sciences, 2020
Due to high power and ultrashort pulses, femtosecond lasers excel at (but are not limited to) processing materials whose thicknesses are less than 500 microns. Numerous experiments and theoretical analyses testify to the fact that there are solid grounds
Katarzyna Garasz, Marek Kocik
doaj   +1 more source

Short pulse generation with 40 GHz passively-mode locked Q-dashed Fabry-Pérot laser [PDF]

, 2009
Generation of sub-picosecond pulses by a DC-biased passively mode-locked Fabry-Perot laser is demonstrated. By using a tunable band-pass filter, it is observed that the width of the generated pulses decreases in direct proportion to the optical modes ...
Latkowski, Sylwester, Sylwester Latkowski, Maldonado-Basilio, Ramón, Pascal Landais, Ramon Maldonado-Basilio, Landais, Pascal   +5 more
core   +3 more sources

Pattern analysis of laser-tattoo interactions for picosecond- and nanosecond-domain 1,064-nm neodymium-doped yttrium-aluminum-garnet lasers in tissue-mimicking phantom

Scientific Reports, 2017
During laser treatment for tattoo removal, pigment chromophores absorb laser energy, resulting in fragmentation of the ink particles via selective photothermolysis.
Keun Jae Ahn, Zhenlong Zheng, Tae Rin Kwon, Beom Joon Kim, Hye Sun Lee, Sung Bin Cho   +5 more
doaj   +1 more source

Application of photoelectric technology on melasma

Pifu-xingbing zhenliaoxue zazhi, 2022
Melasma is a skin disease where brown or pigmented patches appear on the face. Currently, it is difficult to be treated because of lower success rate and higher recurrence rate.
Hua LI, Yong HAO, Hui HAN
doaj   +1 more source