Results 11 to 20 of about 2,541,468 (293)
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 +2 more
openaire +3 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 +5 more
openaire +4 more sources
Controllable harmonic mode locking and multiple pulsing in a Ti:sapphire laser [PDF]
Optics Express, 2008 A new way to control the harmonic mode-locking and multiple pulsing operation with the pulse duration unaffected of a Kerr-lens mode-locked Ti:sapphire laser was demonstrated. When the effective nonlinear length of the nonlinear medium which was inserted in the Ti:sapphire laser was varied by changing the position of the medium or the pump power of the
Han, Xiaohong, Wu, Jian, Zeng, Heping
openaire +4 more sources
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 +6 more
openaire +3 more sources
Decaying dynamics of harmonic mode-locking in a SESAM-based mode-locked fiber laser
Optics Express, 2023 The entire decaying dynamics of harmonic mode-locking (HML) are studied utilizing the dispersive Fourier transform (DFT) technique in a SESAM-based mode-locked fiber laser. It is unveiled that the harmonic solitons do not disappear directly, but undergo transitional processes from the higher-order HML to the lower-order HML and then to the fundamental ...
Xiaohui Ma +12 more
openaire +2 more sources
Breathing Solitons in a Passively Harmonic Mode-Locked Fibre Laser [PDF]
Conference on Lasers and Electro-Optics, 2022 We report on the first experimental observation of breathing solitons in a passively harmonic mode-locked fibre laser. Various features of a 4th-harmonic operation state showing breather oscillations with a period of 5 roundtrips are discussed.
Huang, A. Q. +6 more
openaire +2 more sources
Yb-doped femtosecond lasers and their frequency doubling [PDF]
, 2009 Ultralow threshold, compact and highly efficient femtosecond lasers based on Yb³⁺-doped potassium yttrium tungstate (Yb:KYW) and Yb³⁺-doped vanadium yttrium oxide (Yb:YVO 4 ) have been demonstrated within this PhD-research project.
Sarmani, Abdul Rahman
core +2 more sources
Polarization attractors in harmonic mode-locked fiber laser [PDF]
Optics Express, 2014 We report on a polarimetry of harmonic mode-locked erbium-doped fiber laser with carbon nanotubes saturable absorber. We find new types of vector solitons with locked, switching and precessing states of polarization. The underlying physics presents interplay between birefringence of a laser cavity created by polarization controller along with light ...
Tatiana Habruseva +3 more
openaire +3 more sources
Mode locking in the ring laser gyroscope: Reduced threshold for two cavity modes [PDF]
, 1990 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.A ring laser gyroscope is a device which employs a ring laser to measure rotation.
Naftaly, Mira
core +7 more sources
Passive harmonic mode locking in soliton fiber lasers [PDF]
Journal of the Optical Society of America B, 1997 We show that low time jitter of a harmonic passively mode-locked laser can be obtained at repetition rates close to acoustic eigen-frequencies of the optical fibre.
Grudinin, A.B., Gray, S.
openaire +2 more sources