All-fiber high-power linearly polarized supercontinuum generation from polarization-maintaining photonic crystal fibers

Tao, Youshan; Chen, Shengping

doi:10.1017/hpl.2019.15

Cited by 12 publications

(5 citation statements)

References 25 publications

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“…We checked that this power density on the sample does not cause any nonlinear effects even under the pulsed operation conditions. However, care must be taken for such a high temporal laser power density as it could lead to, e.g., trion generation …”

Section: Resultsmentioning

confidence: 99%

Improved Laser‐Based Photoluminescence on Single‐Walled Carbon Nanotubes

Kollarics

Palotás

Bojtor

et al. 2019

Physica Status Solidi (b)

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Photoluminescence (PL) is a common tool to characterize various properties of single‐walled carbon nanotube (SWCNT) chirality distribution and the level of tube individualization in SWCNT samples. Most PL studies use conventional lamp light sources whose spectral distribution is filtered with a monochromator, but this results in a still impure spectrum with a low spectral intensity. Tunable dye lasers offer a tunable light source which cover the desired excitation wavelength range with a high spectral intensity, but their operation is often cumbersome. Herein, the design and properties of an improved dye‐laser system which is based on a Q‐switch pump laser are presented. The high peak power of the pump provides an essentially threshold‐free lasing of the dye laser, which substantially improves the operability. It allows operation with laser dyes, such as Rhodamin 110 and Pyridin 1, which are otherwise on the border of operation of the laser. The system allows to cover the 540–730 nm wavelength range with four dyes. In addition, the dye laser output pulses closely follow the properties of the pump, which directly provides a time‐resolved and tunable laser source. The performance of the system by measuring the PL map of a HiPco SWCNTs sample is demonstrated.

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Section: Resultsmentioning

confidence: 99%

Improved Laser‐Based Photoluminescence on Single‐Walled Carbon Nanotubes

Kollarics

Palotás

Bojtor

et al. 2019

Physica Status Solidi (b)

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“…A supercontinuum (SC) refers to a laser source with a broad spectrum and has been widely studied [1][2][3]. Typically, an SC is generated in fibers by non-linear effects, with the SC spectra relying on the pump wavelength, pulse width, pump power, and non-linear fiber.…”

Section: Introductionmentioning

confidence: 99%

Supercontinuum Shaping via Hollow Core Anti-Resonant Fiber

Chen

Liao

et al. 2023

Photonics

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This study proposes a novel supercontinuum (SC) shaping method using an all-fiber structure with little influence on the time domain and frequency domain of the SC spectrum. An SC is a type of laser source with a broad spectrum. However, its pump wavelength has a much greater intensity than other wavelengths, limiting the application of the SC. Our approach takes advantage of a hollow core anti-resonance fiber to attenuate the power density at the pump wavelength appropriately, thus flattening the SC spectrum. Simulation and experimental results both support the effectiveness of this method in reducing the wavelength at the pump. In our experiment, the use of a hollow core anti-resonant fiber decreased the intensity at the pump wavelength of the SC by 9 dB. By employing this method, the energy threshold can be lowered, allowing the SC to be applied to a larger range of experimental setups or applied scenarios with fewer energy requirements.

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“…Currently, the mainly used ways to generate high-power SC can be categorized two types. The first way is to use high-power continuous wave or pulsed fiber laser to pump photonic crystal fiber (PCF) [8][9][10][11][12][13][14] . With the help of a high nonlinear coefficient of PCF, the pump laser spectrum will be greatly broadened in it and become an SC.…”

Section: Introductionmentioning

confidence: 99%

High-power broadband supercontinuum generation through a simple narrow-bandwidth FBGs-based fiber laser cavity

Zhang¹,

Jiang²,

Li³

et al. 2022

中国光学快报

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The generation of supercontinuum (SC) often requires ultrashort pulsed lasers with high peak power and gain media with large nonlinear coefficients, such as a long piece of fiber or photonic crystal fiber. In this Letter, we propose and demonstrate that high-power SC can be generated through a simple narrow-bandwidth fiber Bragg gratings (FBGs)-based laser cavity without any modulation, based on the mechanism of intense nonlinear effects induced by the inherent self-pulsation generated inside the cavity. In the experiment, an ∼80 W SC laser with the spectrum range from < 600 nm to 1600 nm was achieved. To the best of our knowledge, this is the first report about SC generation through a simple fiber laser cavity. This work enriches the research content of SC and provides a cost-effective method for high-power SC lasers.

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All-fiber high-power linearly polarized supercontinuum generation from polarization-maintaining photonic crystal fibers

Cited by 12 publications

References 25 publications

Improved Laser‐Based Photoluminescence on Single‐Walled Carbon Nanotubes

Improved Laser‐Based Photoluminescence on Single‐Walled Carbon Nanotubes

Supercontinuum Shaping via Hollow Core Anti-Resonant Fiber

High-power broadband supercontinuum generation through a simple narrow-bandwidth FBGs-based fiber laser cavity

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