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Vaclav Skala
Image processing techniques are based nearly exclusively on RGB (red?green?blue) representation, which is significantly influenced by technological issues. The RGB triplet represents a mixture of the wavelength, saturation, and lightness values of light....
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Guangchao Ye, Wei Wang, Haicheng Liu, Wenqiang Xie, Shixing Xia, Qinggang Meng and Peng Lin
A Tm,Ho:YAP laser at cryogenic temperature is demonstrated for the first time with simultaneous emission at 2000 nm and 2119 nm. The feasibility of switching wavelength and achieving balanced output powers at two widely separated wavelengths has been con...
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Eli Ohana and Dror Malka
To test silicon photonics component performances, a silicon (Si) grating coupler (GC) is used to couple the light from a single-mode fiber (SMF) into the chip. However, silicon nitride (Si3N4) waveguides have recently become more popular for realizing ph...
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Di Ji, Zhitao Hu, Nan Ye, Fufei Pang and Yingxiong Song
At 2 µm wavelengths (149.9 THz), hollow-core photonics band gap fibers have higher light power damage thresholds, stable polarization states, and lower losses of 0.1 dB/km. Additionally, a thulium-doped fiber amplifier can provide a gain of >35 dB. Speci...
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Zijian Wang, Bingyang Li, Yuheng Wang, Renzhe Han, Yaru Yang, Yongji Yu and Guangyong Jin
This paper presents an external-cavity dual-wavelength mid-infrared multiple optical parametric oscillator based on a single MgO:APLN crystal, which is pumped by a pulsed 1.064 µm laser. The output power and beam qualities of parametric lasers at differe...
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Yan Xu, Yang Gao, Songyue Liu, Tingyu Liu, Xiaoqiang Sun, Bo Tang, Peng Zhang and Daming Zhang
Mode division multiplexing (MDM) is a promising technology for the capacity enlargement of the optical transmission network. As a key element in the MDM system, the mode converter plays an important role in signal processing. In this work, a wideband E00...
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Giorgio Sebastiano Mauro, Giuseppe Torrisi, Andrea Locatelli, Alberto Bacci, Costantino De Angelis, David Mascali and Gino Sorbello
Hollow core microstructures powered by infrared lasers represent a new and promising area of accelerator research, where advanced concepts of electromagnetism must be used to satisfy multiple requirements. Here, we present the design of a dielectric elec...
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Amanvon Ferdinand Atta, Joël Christian Adépo, Bernard Cousin and Souleymane Oumtanaga
Network reconfiguration is an important mechanism for network operators to optimize network performance and optical flow transfer. It concerns unicast and multicast connections. Multicast connections are required to meet the bandwidth requirements of mul...
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Wei Chen, Jing Liu, Wen-Zhuang Ma, Gao-Xiang Yu, Jing-Qian Chen, Hao-Yuan Cai and Cheng-Fu Yang
Solar energy is the most important clean energy source on the earth, and many research studies have been conducted to investigate solar-energy collection. This article numerically proposes a new ultra-broadband solar absorber with structures of multilaye...
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Deb Kumar Shah, Devendra KC, M. Shaheer Akhtar, Chong Yeal Kim and O-Bong Yang
This paper describes the unique antireflection (AR) layer of vertically arranged ZnO nanorods (NRs) on crystalline silicon (c-Si) solar cells and studies the charge transport and photovoltaic properties by simulation. The vertically arranged ZnO NRs were...
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