Enhancing Q-Switched Fiber Laser Performance Based on Reverse Saturable and Saturable Absorption Properties of CuCrO2 Nanoparticle-Polyimide Films

2021 ◽  
Author(s):  
Yingtian Xu ◽  
Hanfei Hu ◽  
Hongda Wu ◽  
Chongyang Xu ◽  
He Zhang ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Saturable Absorption ◽  
Polyimide Films ◽  
Absorption Properties ◽  
Laser Performance

Saturable absorption properties of the SnS2/FTO thin film

Optik ◽  
2018 ◽  
Vol 171 ◽  
pp. 839-844 ◽  
Author(s):  
Peng Zhou ◽  
Zhiqiang Huang ◽  
Xuguang Sun ◽  
Guicang Ran ◽  
Rongren Shen ◽  
...  
Keyword(s):  
Thin Film ◽  
Saturable Absorption ◽  
Absorption Properties

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.

Research on Fiber Laser Performance Working at Different Temperatures

2015 ◽  
Vol 42 (s1) ◽  
pp. s102004
Author(s):  
杜雪原 Du Xueyuan ◽  
粟荣涛 Su Rongtao ◽  
王小林 Wang Xiaolin ◽  
周朴 Zhou Pu
Keyword(s):  
Fiber Laser ◽  
Laser Performance ◽  
Different Temperatures

Passively harmonic mode-locked fiber laser based on ReS2 saturable absorber

2017 ◽  
Vol 31 (18) ◽  
pp. 1750206 ◽  
Author(s):  
Feifei Lu
Keyword(s):  
Pump Power ◽  
Fiber Laser ◽  
Output Power ◽  
Saturable Absorber ◽  
Repetition Rate ◽  
Mode Locking ◽  
High Repetition Rate ◽  
Pulse Interval ◽  
Saturable Absorption ◽  
Harmonic Mode

We demonstrate the generation of harmonic mode-locking (HML) in an erbium-doped fiber laser with a microfiber-based rhenium disulfide (ReS2) saturable absorber (SA). Taking advantages of both saturable absorption and large third-order nonlinear effect of ReS2, HML pulse with 318.5 MHz repetition rate can be obtained, corresponding to 168th harmonic of fundamental repetition frequency of 1.896 MHz. When the pump power is increased gradually, the pulse interval remains constant, while the output power increases linearly. At the pump power of 450 mW, the output power is [Formula: see text]12 mW. The proposed high-repetition-rate pulse lasers would attract considerable attention due to its potential applications in soliton communications and frequency combs.

Graphene/MoS2 organic glasses: Fabrication and enhanced reverse saturable absorption properties

2013 ◽  
Vol 35 (12) ◽  
pp. 2352-2356 ◽  
Author(s):  
Qiuyun Ouyang ◽  
Hailong Yu ◽  
Hongyu Wu ◽  
Zhenyu Lei ◽  
Lihong Qi ◽  
...  
Keyword(s):  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Absorption Properties ◽  
Organic Glasses

scholarly journals Graphdiyne Saturable Absorber for Passively Q-Switched Ho3+-Doped Laser

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1848
Author(s):  
Cheng Zhang ◽  
Qianqian Hao ◽  
Yuqian Zu ◽  
Mengyu Zong ◽  
Jia Guo ◽  
...  
Keyword(s):  
Saturable Absorber ◽  
Pulse Width ◽  
Optical Modulator ◽  
Saturable Absorption ◽  
Carbon Nanostructure ◽  
Absorption Properties ◽  
Promising Candidate ◽  
Average Output ◽  
Short Pulses ◽  
Maximum Average Output Power

High-quality all-carbon nanostructure graphdiyne (GDY) saturable absorber was successfully fabricated and saturable absorption properties in the 2 μm region were characterized using a commercial mode-locked laser as a pulsed source. The fabricated GDY was first used as an optical switcher in a passively Q-switched Ho laser. Under absorbed pump power of 2.4 W, the maximum average output power and shortest pulse width were 443 mW and 1.38 µs, at a repetition rate of 29.72 kHz. The results suggest that GDY nanomaterial is a promising candidate as an optical modulator for generation of short pulses in Ho-doped lasers at 2.1 μm.

Nonlinear Absorption Properties of Spherical Gold Colloidal Nanoparticles

2012 ◽  
Vol 476-478 ◽  
pp. 923-927 ◽  
Author(s):  
Chan Zheng ◽  
Xiao Yun Ye ◽  
Xue Qing Xiao
Keyword(s):  
Nonlinear Absorption ◽  
Laser Pulses ◽  
Phase Method ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Colloidal Nanoparticles ◽  
Free Carrier Absorption ◽  
Absorption Properties ◽  
Liquid Phase Method ◽  
Carrier Absorption

Spherical gold colloidal nanoparticles were prepared used traditional liquid phase method and the corresponding nonlinear absorption properties were investigated by open aperture Z-scan technique using 8 ns laser pulses of 532 nm. The gold colloidal nanoparticles exhibited a transform from saturable absorption (SA) to reverse saturable absorption (RSA) at relatively higher irradiation intensities. The SA behavior presumably owes to the bleach of ground-state surface plasmon resonance (SPR) absorption, while the RSA might result from high excited-stated free carrier absorption.

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