Passively mode-locking induced by gold nanorods in erbium-doped fiber lasers

Kang, Zhe; Xu, Yang; Zhang, Lei; Jia, Zhixu; Liu, Lai; Zhao, Dan; Feng, Yang; Qin, Guanshi; Qin, Weiping

doi:10.1063/1.4816516

Cited by 125 publications

(79 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, metal nanocomposite materials have found novel photonic applications such as ultrashort pulse generation by mode‐locking, all‐optical switching, and epsilon‐near‐zero materials . Especially, in slow light scheme in metal nanocomposites using the plasmon‐induced saturated absorption is proposed but it provides still limited TBP.…”

Section: Introductionmentioning

confidence: 91%

Slow and Stopped Light in Active Gain Composite Materials of Metal Nanoparticles: Ultralarge Group Index‐Bandwidth Product Predicted

Kim

Choe

2017

Annalen der Physik

View full text Add to dashboard Cite

Chip-compatible slow light devices with large group index-bandwidth products and low losses are of great interest in the community of modern photonics. In this work, active gain materials containing metal nanoparticles are proposed as the slow and stopped light materials. Gain-assisted high field enhancement in metal nanoparticles and the resultant strong dispersion lead to such phenomena. From the Maxwell-Garnett model, it is revealed that the metal nanocomposite exhibits the infinitely large group index when the gain of the host medium and the filling factor of metal nanoparticles satisfy a critical condition. For the gain of the host above the critical value, one can observe slowing down effect with amplification of light pulses. Significantly large group index-bandwidth products, which vary from a few to several thousand or even infinity depending on the gain value of the host medium, have been numerically predicted in active silica glasses containing spheroidal metal nanoparticles, as examples. The proposed scheme inherently provides the widely varying operating spectral range by changing the aspect ratio of metal nanoparticles and chip-compatibility with low cost.

show abstract

Section: Introductionmentioning

confidence: 91%

Slow and Stopped Light in Active Gain Composite Materials of Metal Nanoparticles: Ultralarge Group Index‐Bandwidth Product Predicted

Kim

Choe

2017

Annalen der Physik

View full text Add to dashboard Cite

show abstract

“…We characterized the NLO properties of the Pdots. Thin films of the Pdots were drop cast from an aqueous solution comprising Pdots and carboxymethyl cellulose polymer . The resulting films can be easily peeled off from the glass substrate and integrated into the fiber laser cavity.…”

Section: Summary Of Molecular Weights Of Four Semiconducting Polymersmentioning

confidence: 99%

Near‐Infrared Broadband Polymer‐Dot Modulator with High Optical Nonlinearity for Ultrafast Pulsed Lasers

Chen

Wang

Liu

et al. 2019

Laser & Photonics Reviews

Self Cite

View full text Add to dashboard Cite

Optical modulators hold great promise for nonlinear optical and photonic devices. However, current optical modulators are exclusively based on inorganic saturable absorbers such as semiconductor thin films, 2D materials, and plasmonic nanocrystals. Here, nonlinear optical modulation is demonstrated by designing a series of organic semiconducting polymer dots (Pdots) for passive Q‐switching and mode‐locking lasers in the near‐infrared (NIR) region. Combining density functional theory and judicious polymer design, Pdots with large extinction coefficient and broadband absorption are developed which span the entire spectrum from ultraviolet (UV) to NIR region (300 to 2500 nm). The Pdots exhibit strong saturable absorption (β = −1.2 × 10−3 cm W−1) and optical nonlinearity (Imχ(3) = −8.4 × 10−7 esu), which are of orders higher than other nonlinear optical materials such as carbon‐based materials, plasmonic metal nanoparticle, and semiconductor nanocrystals. The Pdot modulators are integrated into the fiber laser systems, and demonstrate passively mode‐locked lasers at 1036, 1038, 1945, 1950 nm and Q‐switched lasers at wavelengths of 1559 and 1957 nm, highlighting the potential of Pdots for advanced nonlinear optical and photonic applications.

show abstract

“…[18][19][20] The SA and RSA effects in Au NPs can mostly be attributed to the third-order nonlinearity of Au NPs. [21][22][23][24][25][26][27] However, in physics, one type of nonlinearity is only relative to one kind of nonlinear absorption coeffi cient of the materials, and higher-order nonlinearities in Au NPs may also contribute to the change in their nonlinear absorption. [ 22 ] The few investigations on the intrinsic mechanism between highorder nonlinearities and the nonlinear absorption of Au NPs constrain the further development and applications of Au NPs in the promising fi elds of optoelectronics and photonics.…”

Section: Communicationmentioning

confidence: 99%

High‐Order Nonlinearity of Surface Plasmon Resonance in Au Nanoparticles: Paradoxical Combination of Saturable and Reverse‐Saturable Absorption

Wang

Zhang

et al. 2015

Advanced Optical Materials

View full text Add to dashboard Cite

The remarkable nonlinear effects of surface plasmon resonance in Au nanoparticles, mainly the third‐order and fifth‐order nonlinearities, are responsible for saturable absorption and reverse‐saturable absorption, respectively, with a switch in the nonlinear absorption behavior at 5 GW cm−2. By employing the saturable absorption effect of Au nanoparticles, a passively Q‐switched solid‐state pulsed laser is successfully demonstrated at the wavelength of 1.06 μm.

show abstract

Passively mode-locking induced by gold nanorods in erbium-doped fiber lasers

Cited by 125 publications

References 24 publications

Slow and Stopped Light in Active Gain Composite Materials of Metal Nanoparticles: Ultralarge Group Index‐Bandwidth Product Predicted

Slow and Stopped Light in Active Gain Composite Materials of Metal Nanoparticles: Ultralarge Group Index‐Bandwidth Product Predicted

Near‐Infrared Broadband Polymer‐Dot Modulator with High Optical Nonlinearity for Ultrafast Pulsed Lasers

High‐Order Nonlinearity of Surface Plasmon Resonance in Au Nanoparticles: Paradoxical Combination of Saturable and Reverse‐Saturable Absorption

Contact Info

Product

Resources

About