Results 11 to 20 of about 25,220 (299)

14.5 GHz passive harmonic mode-locking in a dispersion compensated Tm-doped fiber laser [PDF]

Scientific Reports, 2017
We demonstrate a high repetition rate passive harmonic mode-locking (HML) based on nonlinear polarization evolution (NPE) technique in a Tm-doped ring fiber laser cavity.
Yazhou Wang, Jianfeng Li, Kundong Mo, Yanyan Wang, Fei Liu, Yong Liu   +5 more
doaj   +2 more sources

High-repetition-rate ultrafast fiber lasers enabled by BtzBiI4: a novel bismuth-based perovskite nonlinear optical material [PDF]

Nanophotonics
Recent advances in perovskite crystals have highlighted their exceptional optical properties, making them promising candidates for a wide range of photonic applications.
Du Xiaohui, Liu Chenyue, Ding Zefei, Zhao Yuan, Zhu Cunguang, Wang Yaoyao, Wang Pengpeng   +6 more
doaj   +2 more sources

Real-time in Vivo monitoring of photosynthesis in individual leaves by frequency-locked quartz-enhanced photoacoustic spectroscopy [PDF]

Photoacoustics
This paper presents a method for real-time measurement of in vivo leaves photosynthetic rates using quartz-enhanced photoacoustic spectroscopy (QEPAS) with first-harmonic frequency- locking (1f-locking).
Surui Liu, Lu Qin, Chongqiu Zhou, Juncheng Lu, Wen Liu, Jie Shao   +5 more
doaj   +2 more sources

Passive harmonic mode locking of soliton crystals [PDF]

Optics Letters, 2011
We report experimental observation of passive harmonic mode locking (HML) in which the basic pattern is a soliton crystal. Several crystal states were generated from an initial large bound state by increasing the pump power. The soliton crystals are identical and progressively span along the cavity to finally take a regular spacing leading to HML of ...
Amrani, Foued, Niang, Alioune, Salhi, Mohamed, Komarov, Andrey, Leblond, Hervé, Sanchez, François   +5 more
openaire   +4 more sources

Passively harmonic dissipative soliton generation in normal dispersion erbium-doped fiber laser using SMS fiber as artificial saturable absorber [PDF]

Scientific Reports
Passively harmonic mode-locking has been experimentally demonstrated in an erbium-doped fiber laser with large normal dispersion using single-multi-single mode structure as artificial saturable absorber.
Yu Chen, Zian Cheak Tiu, Sin Jin Tan, Kaharudin Dimyati, Sulaiman Wadi Harun   +4 more
doaj   +2 more sources

Retiming dynamics of harmonically mode-locked laser solitons in a self-driven optomechanical lattice [PDF]

Light: Science & Applications
Harmonic mode-locking, realized actively or passively, is an effective technique for increasing the repetition rate of ultrafast lasers. It is critically important to understand how a harmonically mode-locked pulse train responds to external ...
Xiaocong Wang, Benhai Wang, Wenbin He, Xintong Zhang, Qi Huang, Zhiyuan Huang, Xin Jiang, Meng Pang, Philip. St. J. Russell   +8 more
doaj   +2 more sources

Dynamics Simulation of Self-Mode-Locking in a Semiconductor Disk Laser Using Delay Differential Equations

Photonics, 2022
Self-mode-locked semiconductor disk lasers possess compact resonant cavity and stable construction. These devices have a wide application prospect because of their picosecond to sub-picosecond pulse width, excellent beam quality and tailorable emission ...
Tao Wang, Renjiang Zhu, Cunzhu Tong, Yunjie Liu, Peng Zhang   +4 more
doaj   +1 more source

Harmonically mode-locked Ti:Er:LiNbO_3 waveguide laser [PDF]

Optics Letters, 1995
Active mode locking of an Er-diffusion-doped Ti:LiNbO(3) waveguide laser by intracavity phase modulation to as high as the fourth harmonic (5.12 GHz) of the axial-mode frequency spacing is reported. The diode-pumped, pigtailed, and fully packaged laser with a monolithically integrated intracavity phase modulator has a threshold of 9 mW (incident pump ...
H. Suche, R. Wessel, S. Westenhofer, W. Sohler, S. Bosso, C. Carmannini, CORSINI, Raffaele   +6 more
openaire   +3 more sources

Vector harmonic mode-locking by acoustic resonance [PDF]

Photonics Research, 2021
For an Er-doped fiber laser, for the first time, to the best of our knowledge, we demonstrate both experimentally and theoretically a novel mechanism of harmonic mode-locking based on the electrostriction effect leading to excitation of the torsional acoustic modes in the transverse section of the laser. The exited torsional acoustic modes modulate the
Sergeyev, Sergey, Kolpakov, Stanislav, Loika, Yury   +2 more
openaire   +1 more source

Gigahertz femtosecond laser-by a novel asymmetric one-dimensional photonic crystal saturable absorber device with defect layer

Nanophotonics, 2022
High repetition frequency (HRF) ultrashort pulse fiber laser has been widely used in laser cold processing. The technical solutions such as short cavity length fiber laser have been proposed to achieve HRF ultrashort pulse output recently.
Song Chun-Yu, Chen Hua-Long, Wang Yong-Jie, Jin Liang, Xu Ying-Tian, Shi Lin-Lin, Zou Yong-Gang, Ma Xiao-Hui, Song Yu-Feng, Wang Cong, Zhang Ya-Ting, Lin Ja-Hon, Zhang He, Zhang Han, Yao Jian-Quan   +14 more
doaj   +1 more source