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Photonics, Volume 9, Issue 10

October 2022 - 116 articles

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Cover Story: With the rapid increase in the generation of “cold data” globally, there is an ever-increasing demand for higher data storage capacities. Optical data storage (ODS) has a better shelf life (Blu-ray) but lags existing technologies in terms of storage capacity as this planar technology cannot be scaled. In 3D ODS, the storage capacity is limited by increasing spherical aberrations and light scattering with depth. We maximize the storage capacity of fluorescence-based 3D ODS without the use of specialized optics, index matching liquids, new material development, and complex techniques. Using commonly available transparent plastics, we demonstrate the storage capacity of 275 GB/standard optical disc by embedding 120 layers of data. Our method enables practical implementation in developing a viable 3D ODS-based consumer electronic device. View this paper

Articles (116)

  • Article
  • Open Access
10 Citations
2,318 Views
13 Pages
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Femtosecond Laser Direct Writing of Antireflection Microstructures on the Front and Back Sides of a GaSe Crystal

  • Alexander Yelisseyev,
  • Vladislav Fedyaj,
  • Victor Simonov,
  • Ludmila Isaenko,
  • Sergey Lobanov,
  • Alexander Shklyaev,
  • Andrey Simanchuk,
  • Sergey Babin and
  • Alexander Dostovalov
Photonics2022, 9(10), 774;https://doi.org/10.3390/photonics9100774

18 October 2022

The development of antireflection coatings is crucially important to improve the performance of various photonic devices, for example, to increase the efficiency of harmonic generators based on high-refractive index crystals with significant Fresnel...

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  • Article
  • Open Access
5 Citations
2,091 Views
11 Pages
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The Effect of the Spin and Orbital Parts of the Poynting Vector on Light Localization in Solid-Core Micro-Structured Optical Fibers

  • Grigory Alagashev,
  • Sergey Stafeev,
  • Victor Kotlyar and
  • Andrey Pryamikov
Photonics2022, 9(10), 775;https://doi.org/10.3390/photonics9100775

18 October 2022

The optical properties of solid-core micro-structured optical fibers (SC MOFs) have been studied for a long time. The process of the energy outflow of the core modes has always been associated with the process of constructive interference of the core...

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  • Article
  • Open Access
9 Citations
2,895 Views
12 Pages
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Broadband Supercontinuum Generation in Dispersion Decreasing Fibers in the Spectral Range 900–2400 nm

  • Irina V. Zhluktova,
  • Vladimir A. Kamynin,
  • Dmitry A. Korobko,
  • Aleksei S. Abramov,
  • Andrei A. Fotiadi,
  • Alexej A. Sysoliatin and
  • Vladimir B. Tsvetkov
Photonics2022, 9(10), 773;https://doi.org/10.3390/photonics9100773

18 October 2022

The spectrally flat supercontinuum generation in the wavelength range of 900–2400 nm is demonstrated in silica-based fibers of variable core diameter and dispersion. It is shown that, in comparison with standard optical fibers of the same lengt...

Full Article
  • Communication
  • Open Access
6 Citations
2,638 Views
9 Pages
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Tunable Microwave Pulse Generation Based on an Actively Mode-Locked Optoelectronic Oscillator

  • Jin Zhang,
  • Depei Zhang,
  • Maolong Zhang,
  • Daikun Zheng,
  • Anle Wang,
  • Xiaotong Liu,
  • Lei Hu,
  • Xiaoniu Peng and
  • Yalan Wang
Photonics2022, 9(10), 772;https://doi.org/10.3390/photonics9100772

17 October 2022

A tunable microwave-pulse-generation scheme is proposed and demonstrated by employing an actively mode-locked optoelectronic oscillator (OEO) based on a microwave photonic filter (MPF). The MPF mainly consists of a phase-shifted fiber Bragg grating (...

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  • Communication
  • Open Access
2 Citations
2,041 Views
10 Pages
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Monolithic Side-Pumped Amplifier Based on an Yb-Doped Tapered-Fiber and Yielding 0.53 MW 9.3 ps Pulses

  • Konstantin Bobkov,
  • Andrey Levchenko,
  • Denis Lipatov,
  • Alexey Guryanov,
  • Mikhail Bubnov and
  • Mikhail Likhachev
Photonics2022, 9(10), 771;https://doi.org/10.3390/photonics9100771

15 October 2022

We demonstrated a simple design of a monolithic all-fiber side-coupled combiner for counter-pumped amplifiers that requires no special fiber processing systems for fabrication. The combiner based on a Yb-doped polarization-maintained tapered fiber wi...

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  • Article
  • Open Access
10 Citations
2,639 Views
10 Pages
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Thermal Sensor Based on Polydimethylsiloxane Polymer Deposited on Low-Index-Contrast Dielectric Photonic Crystal Structure

  • Yousuf Khan,
  • Muhammad A. Butt,
  • Svetlana N. Khonina and
  • Nikolay L. Kazanskiy
Photonics2022, 9(10), 770;https://doi.org/10.3390/photonics9100770

14 October 2022

In this work, a dielectric photonic crystal-based thermal sensor is numerically investigated for the near-infrared spectral range. An easy-to-fabricate design is chosen with a waveguide layer deposited on a silicon dioxide substrate with air holes dr...

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  • Article
  • Open Access
6 Citations
2,442 Views
9 Pages
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Dual-Wavelength Continuous-Wave and Passively Q-Switched Alexandrite Laser at 736.7 nm and 752.8 nm

  • Hongyi Lin,
  • Shangfeng Bao,
  • Xiao Liu,
  • Shuo Song,
  • Zhiwei Wen and
  • Dong Sun
Photonics2022, 9(10), 769;https://doi.org/10.3390/photonics9100769

14 October 2022

A dual-wavelength continuous-wave (CW) and passively Q-switched alexandrite laser based on a MoS2 saturable absorber (SA) operating at 736.7 nm and 752.8 nm with a simple and compact 18 mm plano–plano resonator is reported. In the CW mode, the...

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  • Article
  • Open Access
3 Citations
2,774 Views
13 Pages
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Tunable and Switchable Multi-Wavelength Erbium-Doped Fiber Laser Based on Composite Structure Filter

  • Boya Shi,
  • Chang Liu,
  • Xinyan Lei,
  • Junfa Zhao and
  • Shuxia Yan
Photonics2022, 9(10), 768;https://doi.org/10.3390/photonics9100768

14 October 2022

A multi-wavelength erbium-doped fiber laser (MW-EDFL) with wide tuning range, switching and adjustable wavelength interval is designed and tested, which is based on a composite filter. The filter consists of a tapered microfiber coupler loop (TMCL) w...

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  • Article
  • Open Access
1 Citations
2,338 Views
12 Pages
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Highly Efficient White Organic Light-Emitting Diodes Based on Phosphorescent Iridium Complexes with Multi-Light-Emitting Layers

  • Ruixia Wu,
  • Xiaokang Li,
  • Weiqiang Liu and
  • Liang Zhou
Photonics2022, 9(10), 767;https://doi.org/10.3390/photonics9100767

13 October 2022

White organic light-emitting diodes (WOLEDs) incorporating a blend of blue, green and red phosphorescent small molecular materials are presented in this article. 4,4′,4″-Tris(carbazol-9-yl)triphenylamine (TcTa) and 9-(4-tert-Butylphenyl)-...

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  • Article
  • Open Access
2 Citations
2,351 Views
11 Pages
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Design and Characteristics of Diamond-Assisted Ring-Core Fiber for Space Division Multiplexing

  • Yujing Song,
  • Jingjing Zheng,
  • Li Pei,
  • Jing Huang,
  • Tigang Ning,
  • Jing Li,
  • Jianshuai Wang and
  • Bing Bai
Photonics2022, 9(10), 766;https://doi.org/10.3390/photonics9100766

13 October 2022

In this paper, a novel diamond-assisted ring-core fiber (DRF) is proposed. With the introduction of a low-refractive-index diamond-shaped region located in the center of the core, the proposed fiber effectively eliminates spatial degeneracy of the LP...

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