scholarly journals Time-gating processes in intra-cavity mode-locking devices like saturable absorbers and Kerr cells

2010 ◽  
Author(s):  
Narasimha S. Prasad ◽  
Chandrasekhar Roychoudhuri
Keyword(s):  
Cavity Mode ◽  
Mode Locking ◽  
Saturable Absorbers ◽  
Time Gating

scholarly journals Ultrafast mode-locking in highly stacked Ti3C2Tx MXenes for 1.9-μm infrared femtosecond pulsed lasers

Nanophotonics ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1741-1751
Author(s):  
Young In Jhon ◽  
Jinho Lee ◽  
Young Min Jhon ◽  
Ju Han Lee
Keyword(s):  
High Performance ◽  
Density Functional ◽  
2D Materials ◽  
Density Functional Theory Calculations ◽  
Mode Locking ◽  
Infrared Range ◽  
Saturable Absorption ◽  
Pulsed Lasers ◽  
Saturable Absorbers ◽  
Layer Stacking

Abstract Metallic 2D materials can be promising saturable absorbers for ultrashort pulsed laser production in the long wavelength regime. However, preparing and manipulating their 2D structures without layer stacking have been nontrivial. Using a combined experimental and theoretical approach, we demonstrate here that a metallic titanium carbide (Ti3C2Tx), the most popular MXene 2D material, can have excellent nonlinear saturable absorption properties even in a highly stacked state due to its intrinsically existing surface termination, and thus can produce mode-locked femtosecond pulsed lasers in the 1.9-μm infrared range. Density functional theory calculations reveal that the electronic and optical properties of Ti3C2Tx MXene can be well preserved against significant layer stacking. Indeed, it is experimentally shown that 1.914-μm femtosecond pulsed lasers with a duration of 897 fs are readily generated within a fiber cavity using hundreds-of-layer stacked Ti3C2Tx MXene saturable absorbers, not only being much easier to manufacture than mono- or few-layered ones, but also offering character-conserved tightly-assembled 2D materials for advanced performance. This work strongly suggests that as-obtained highly stacked Ti3C2Tx MXenes can serve as superb material platforms for versatile nanophotonic applications, paving the way toward cost-effective, high-performance photonic devices based on MXenes.

scholarly journals MXene Core-Shell Nanosheets: Facile Synthesis, Optical Properties, and Versatile Photonics Applications

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1995
Author(s):  
Yunjia Wang ◽  
Shunxiang Liu ◽  
Feng Zhu ◽  
Yiyu Gan ◽  
Qiao Wen
Keyword(s):  
Gold Nanoparticles ◽  
Research Work ◽  
Mode Locking ◽  
Single Frequency ◽  
Core Shell ◽  
Complex Structures ◽  
Facile Synthesis ◽  
Laser Applications ◽  
Saturable Absorbers ◽  
Frequency Laser

In recent years, the transition metal carbonitrides(MXenes) have been widely applied to photoelectric field, and better performance of these applications was achieved via MXene complex structures. In our work, we proposed a MXene core-shell nanosheet composed of a Ti2C (MXene) phase and gold nanoparticles, and applied it to mode-locked and single-frequency fiber laser applications. The optoelectronic results suggested that the performances of these two applications were both improved when MXene core-shell nanosheets were applied. As a result, we obtained a mode-locking operation with 670 fs pulses, and the threshold pump power reached to as low as 20 mW. Besides, a single-frequency laser with the narrowest linewidth of ~1 kHz is also demonstrated experimentally. Our research work proved that MXene core-shell nanosheets could be used as saturable absorbers (SAs) to promote versatile photonic applications.

Nonlinear spectroscopy of PbS quantum-dot-doped glasses as saturable absorbers for the mode locking of solid-state lasers

2006 ◽  
Vol 100 (2) ◽  
pp. 023108 ◽  
Author(s):  
A. M. Malyarevich ◽  
M. S. Gaponenko ◽  
K. V. Yumashev ◽  
A. A. Lagatsky ◽  
W. Sibbett ◽  
...  
Keyword(s):  
Solid State ◽  
Quantum Dot ◽  
Mode Locking ◽  
Nonlinear Spectroscopy ◽  
Solid State Lasers ◽  
Saturable Absorbers ◽  
Doped Glasses ◽  
Pbs Quantum Dot

Nonlinear fiber external cavity mode locking of erbium-doped fiber lasers

1993 ◽  
Vol 10 (7) ◽  
pp. 1166 ◽  
Author(s):  
T. Geisler ◽  
K. A. Shore ◽  
M. P. Soerensen ◽  
J. Mørk ◽  
J. Mark ◽  
...  
Keyword(s):  
Fiber Lasers ◽  
Cavity Mode ◽  
External Cavity ◽  
Mode Locking ◽  
Erbium Doped ◽  
Nonlinear Fiber

Boosting the Non Linear Optical Response of Carbon Nanotube Saturable Absorbers for Broadband Mode-Locking of Bulk Lasers

2010 ◽  
Vol 20 (12) ◽  
pp. 1937-1943 ◽  
Author(s):  
W. B. Cho ◽  
J. H. Yim ◽  
S. Y. Choi ◽  
S. Lee ◽  
A. Schmidt ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Optical Response ◽  
Mode Locking ◽  
Saturable Absorbers ◽  
Non Linear ◽  
Linear Optical

Passive switch with a mixture of saturable absorbers for mode locking in solid-state lasers

1987 ◽  
Vol 17 (4) ◽  
pp. 511-512 ◽  
Author(s):  
Aleksandr V Konyashchenko ◽  
I V Kryukova ◽  
P G Kryukov ◽  
A V Sharkov
Keyword(s):  
Solid State ◽  
Mode Locking ◽  
Solid State Lasers ◽  
Saturable Absorbers
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