scholarly journals Quantum Well Saturable Absorber Mirror with Electrical Control of Modulation Depth

2010 ◽  
Author(s):  
Xiaomin Liu ◽  
Edik U. Rafailov ◽  
Daniil Livshits ◽  
Dmitry Turchinovich
Keyword(s):  
Quantum Well ◽  
Saturable Absorber ◽  
Modulation Depth ◽  
Electrical Control

scholarly journals Quantum well saturable absorber mirror with electrical control of modulation depth

2010 ◽  
Vol 97 (5) ◽  
pp. 051103 ◽  
Author(s):  
Xiaomin Liu ◽  
Edik U. Rafailov ◽  
Daniil Livshits ◽  
Dmitry Turchinovich
Keyword(s):  
Quantum Well ◽  
Saturable Absorber ◽  
Modulation Depth ◽  
Electrical Control

scholarly journals VS2 as saturable absorber for Q-switched pulse generation

Nanophotonics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 2569-2576 ◽  
Author(s):  
Lu Li ◽  
Lihui Pang ◽  
Qiyi Zhao ◽  
Yao Wang ◽  
Wenjun Liu
Keyword(s):  
Saturable Absorber ◽  
Nonlinear Optical ◽  
Modulation Depth ◽  
Signal To Noise Ratio ◽  
Transition Metal Dichalcogenides ◽  
Laser Cavity ◽  
Pulse Generation ◽  
High Signal ◽  
Power Pulse ◽  
Metal Dichalcogenides

AbstractTransition metal dichalcogenides have been widely utilized as nonlinear optical materials for laser pulse generation applications. Herein, we study the nonlinear optical properties of a VS2-based optical device and its application as a new saturable absorber (SA) for high-power pulse generation. Few-layer VS2 nanosheets are deposited on the tapered region of a microfiber to form an SA device, which shows a modulation depth of 40.52%. After incorporating the microfiber-VS2 SA into an Er-doped fiber laser cavity, passively Q-switched pulse trains could be obtained with repetition rates varying from 95 to 233 kHz. Under the pump power of 890 mW, the largest output power and shortest pulse duration are measured to be 43 mW and 854 ns, respectively. The high signal-to-noise ratio of 60 dB confirms the excellent stability of the Q-switching state. To the best of our knolowdge, this is the first illustration of using VS2 as an SA. Our experimental results demonstrate that VS2 nanomaterials have a large potential for nonlinear optics applications.

scholarly journals Highly Stable Passively Q-Switched Erbium-Doped All-Fiber Laser Based on Niobium Diselenide Saturable Absorber

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4303
Author(s):  
Ping Hu ◽  
Jiajia Mao ◽  
Hongkun Nie ◽  
Ruihua Wang ◽  
Baitao Zhang ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Saturable Absorber ◽  
Pulse Width ◽  
Nonlinear Optical ◽  
Modulation Depth ◽  
Transition Metal Dichalcogenide ◽  
Center Wavelength ◽  
Niobium Diselenide ◽  
Erbium Doped ◽  
Layered Transition Metal

A saturable absorber (SA) based on niobium diselenide (NbSe2), which is a layered transition metal dichalcogenide (TMD) in the VB group, is fabricated by the optically driven deposition method, and the related nonlinear optical properties are characterized. The modulation depth, saturable intensity, and nonsaturable loss of the as-prepared NbSe2 nanosheet-based SA are measured to be 16.2%, 0.76 MW/cm2, and 14%, respectively. By using the as-fabricated NbSe2 SA, a highly stable, passively Q-switched, erbium-doped, all-fiber laser is realized. The obtained shortest pulse width is 1.49 μs, with a pulse energy of 48.33 nJ at a center wavelength of 1560.38 nm. As far as we know, this is the shortest pulse duration ever obtained by an NbSe2 SA in a Q-switched fiber laser.

Femtosecond KCl:Li and RbCl:Li color-center lasers near 28 μm with a HgCdTe multiple-quantum-well saturable absorber

1990 ◽  
Vol 15 (20) ◽  
pp. 1147 ◽  
Author(s):  
C. L. Cesar ◽  
K. R. German ◽  
M. N. Islam ◽  
C. E. Soccolich ◽  
R. D. Feldman ◽  
...  
Keyword(s):  
Quantum Well ◽  
Saturable Absorber ◽  
Color Center ◽  
Multiple Quantum Well ◽  
Multiple Quantum

Passively Mode-Locked Quantum-Well Laser With a Saturable Absorber Having Gradually Varied Bandgap

2017 ◽  
Vol 29 (11) ◽  
pp. 889-892 ◽  
Author(s):  
Junjie Xu ◽  
Song Liang ◽  
Songtao Liu ◽  
Lijun Qiao ◽  
Siwei Sun ◽  
...  
Keyword(s):  
Quantum Well ◽  
Saturable Absorber ◽  
Quantum Well Laser
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