Passive Mode-Locking at 1.8 μm using a High-Order Microring Resonator in a Figure-Eight Fiber Laser

2015 ◽  
Author(s):  
K. S. Tsang ◽  
Li Jin ◽  
Victor Ho ◽  
Jack Cheung ◽  
Alessia Pasquazi ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Mode Locking ◽  
High Order ◽  
Microring Resonator ◽  
Passive Mode

High order harmonic passive mode-locking in double-clad fiber laser

2009 ◽  
Author(s):  
Foued Amrani ◽  
Adil Haboucha ◽  
Mohamed Salhi ◽  
Herve Leblond ◽  
Andrey Komarov ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Mode Locking ◽  
High Order ◽  
Passive Mode ◽  
High Order Harmonic

Passive mode-locking of transform-limited hundred-ps long pulses using an integrated nonlinear microring resonator

2015 ◽  
Author(s):  
Christian Reimer ◽  
Michael Kues ◽  
Benjamin Wetzel ◽  
Piotr Roztocki ◽  
Brent E. Little ◽  
...  
Keyword(s):  
Mode Locking ◽  
Microring Resonator ◽  
Passive Mode

Passively mode-locked in Er-doped fiber laser based on semi-metallic InBi saturable absorber

2021 ◽  
Author(s):  
Jianwei Hu ◽  
Rong Huang ◽  
Ziqiao Wei ◽  
Minru Wen ◽  
Fugen Wu ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Modulation Depth ◽  
Mode Locking ◽  
Nodal Line ◽  
Saturable Absorption ◽  
Optical Nonlinearities ◽  
Passive Mode ◽  
Central Wavelength ◽  
Two Dimensional Materials ◽  
Er Doped

Abstract Two-dimensional materials have drawn great interest for their applications in mode-locking owning to their unique optical nonlinearities. However, most of these 2D materials are semi-conductor. In this study, a new kind of semimetal Indium bismuth (InBi) is reported which is a topological nodal-line semimetal with exotic physical properties. The InBi nanomaterials was prepared through liquid phase exfoliation method with average thickness of 32.8 nm. The saturable absorption property was measured and passive mode-locking operation was achieved successfully in Er-doped fiber laser. It exhibits a modulation depth of 3.21%, a saturable intensity of 100 MW/cm2, and a pulse width about 859.97 fs corresponding to the central wavelength of 1562.27 nm and 3-dB bandwidth of 2.98 nm. The experimental results open a new avenue for the use of semimetals InBi nanomaterials in lasers and photonics applications.

3 W average-power high-order mode pulse in dissipative soliton resonance mode-locked fiber laser

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Longtao Wang ◽  
Jiangtao Xu ◽  
Jiafeng Lu ◽  
Linping Teng ◽  
Zhengqian Luo ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Mode Conversion ◽  
Average Power ◽  
High Energy ◽  
Mode Locking ◽  
High Order ◽  
Dissipative Soliton ◽  
Fiber Grating ◽  
Soliton Resonance ◽  
Mode Field

Abstract Recently high-order modes (HOMs) lasers have been extensively investigated due to their potential applications in mode-division multiplexing. In this paper, we present two schemes of generating HOMs from the mode-locked fiber lasers (MLFLs) in the dissipative soliton resonance (DSR) regime. Watt-level HOM outputs are implemented through intra-cavity mode conversion. 3 W average-power HOMs with an efficiency slope of 25% can be obtained based on an MLFL in the DSR regime, which is achieved by incorporating a long-period fiber grating (LPFG) and a dual-resonant acoustically induced fiber grating (AIFG), respectively. Their different spectrum responses enable flexible mode conversion in the MLFLs. Both fiber mode converters are exploited to show their robust capability of efficient mode manipulation. The MLFL with an LPFG inserted in the cavity can achieve wide-bandwidth intra-cavity optical vortex beams (OVBs) near the dispersion turning around point because of the pulses of the fundamental mode and high-order vortex eigenmodes oscillating in the cavity with the same group velocity to form spatiotemporal mode locking. The MLFL based on a dual-resonant AIFG can perform the function of fast switching (∼0.3 ms) in LP01, LP11a, and LP11b modes with a high modal purity of 96%. These different modes with high-energy pulses can be flexibly switched with programmable radio frequency modulation. Furthermore, a quarter-wave plate and a polarizer are employed at the output of fiber laser to realize the controllability of the mode field, which is possible to generate a controllable mode field of OVBs based on the first-order Poincaré sphere. This control method can be integrated with the MLFLs to extend the flexibility of high-power HOMs generation.

Design of 930 nm Passive Mode-Locking Nd-Doped All-Fiber Laser

2017 ◽  
Vol 44 (6) ◽  
pp. 0601006
Author(s):  
沈默 Shen Mo ◽  
孙若愚 Sun Ruoyu ◽  
金东臣 Jin Dongchen ◽  
刘伟 Liu Wei ◽  
洪畅 Hong Chang ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Mode Locking ◽  
Passive Mode
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