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Plasmonic Saturable Absorbers [PDF]

Advanced Photonics Research, 2021
Plasmonic materials are able to spatially confine light to a nanometer scale far smaller than the diffraction limit, resulting in drastically enhanced electrical field strength and stimulating applications in nonlinear optics, energy, and biomedicine ...
Di Zhao, Yi Liu, Jianrong Qiu, Xiaofeng Liu   +3 more
doaj   +2 more sources

2D Saturable Absorbers for Fibre Lasers [PDF]

Applied Sciences, 2015
Two-dimensional (2D) nanomaterials are an emergent and promising platform for future photonic and optoelectronic applications. Here, we review recent progress demonstrating the application of 2D nanomaterials as versatile, wideband saturable absorbers ...
Robert I. Woodward, Edmund J. R. Kelleher   +1 more
doaj   +4 more sources

Terahertz saturable absorbers from liquid phase exfoliation of graphite [PDF]

Nature Communications, 2017
Graphene shows promise for saturable absorption, a key property for ultrafast lasing, yet graphene saturable absorbers operating in the terahertz region suffer from low absorption modulation.
Vezio Bianchi, Tian Carey, Leonardo Viti, Lianhe Li, Edmund H. Linfield, A. Giles Davies, Alessandro Tredicucci, Duhee Yoon, Panagiotis G. Karagiannidis, Lucia Lombardi, Flavia Tomarchio, Andrea C. Ferrari, Felice Torrisi, Miriam S. Vitiello   +13 more
doaj   +2 more sources

Ultrafast terahertz saturable absorbers using tailored intersubband polaritons [PDF]

Nature Communications, 2020
Structures that can enhance the capabilities of quantum cascade lasers are highly sought after to improve their practicality for a range of applications.
Jürgen Raab, Francesco P. Mezzapesa, Leonardo Viti, Nils Dessmann, Laura K. Diebel, Lianhe Li, A. Giles Davies, Edmund H. Linfield, Christoph Lange, Rupert Huber, Miriam S. Vitiello   +10 more
doaj   +2 more sources

Semiconductor saturable absorbers for ultrafast THz signals [PDF]

International Conference on Ultrafast Phenomena, 2010
We demonstrate saturable absorber behavior of n-type semiconductors GaAs, GaP and Ge in THz frequency range at room temperature using nonlinear THz spectroscopy.
Conwell E. M., Dmitry Turchinovich, Matthias C. Hoffmann   +2 more
core   +9 more sources

Virtual FBGs Using Saturable Absorbers for Sensing with Fiber Lasers [PDF]

Sensors, 2018
The spectral narrowing of Fiber Bragg Gratings (FBGs) introduced by unpumped Er-doped fiber (EDF) was analyzed for fiber lasers (FL). Owing to spatial hole burning (SHB), the spectral response of a virtual FBG can be employed for narrowing the band pass ...
Luis Rodriguez-Cobo, Rosa A. Perez-Herrera, María A. Quintela, Rubén Ruiz-Lombera, Manuel Lopez-Amo, José M. Lopez-Higuera   +5 more
doaj   +2 more sources

Low-Threshold and Long-Term Stable Soliton Fiber Laser Using PbSe/PbS Quantum Dot-Polystyrene Composite Saturable Absorber [PDF]

Nanomaterials
Colloidal PbSe quantum dots are promising candidates as saturable absorbers for ultrafast fiber lasers, but their performance is often limited by surface-related defects and chemical instability, leading to aggregation under optical pumping.
Bin Yang, Jingping Shao, Chunxiao Liu, Ling Yun, Zuxing Zhang   +4 more
doaj   +2 more sources

Solitons in ultrafast semiconductor lasers with saturable absorber [PDF]

Nanophotonics
We describe structure localization and dissipative solitons in a semiconductor laser with a saturable absorber exhibiting gain/absorption recovery times shorter than the photon lifetime.
Lugiato Luigi, Prati Franco, Brambilla Massimo, Columbo Lorenzo Luigi   +3 more
doaj   +2 more sources

Graphene absorber on an SOI chip for active and passive mode locking of lasers [PDF]

Scientific Reports
We demonstrate both passive and active mode-locking of fiber lasers using a graphene-based absorber integrated on a silicon photonics platform manufactured using a wafer-scale CMOS process.
Tom Reep, Cheng-Han Wu, Didit Yudistira, Steven Brems, Inge Asselberghs, Marianna Pantouvaki, Joris Van Campenhout, Dries Van Thourhout, Bart Kuyken   +8 more
doaj   +2 more sources

Femtosecond Pulsed Fiber Laser by an Optical Device Based on NaOH-LPE Prepared WSe₂ Saturable Absorber

Nanomaterials, 2022
We report on all-optical devices prepared from WSe2 combined with drawn tapered fibers as saturable absorbers to achieve ultrashort pulse output. The saturable absorber with a high damage threshold and high saturable absorption characteristics is ...
Si Chen, Fengpeng Wang, Fangguang Kuang, Shuying Kang, Hanwen Liang, Lijing Zheng, Lixin Guan, Qing Wu   +7 more
doaj   +1 more source