Results 31 to 40 of about 3,601,774 (284)

Frequency-Domain Detection for Frequency-Division Multiplexing QEPAS

Sensors, 2022
To achieve multi-gas measurements of quartz-enhanced photoacoustic spectroscopy (QEPAS) sensors under a frequency-division multiplexing mode with a narrow modulation frequency interval, we report a frequency-domain detection method. A CH4 absorption line
Xiang Chen, Hao Liu, Mai Hu, Lu Yao, Zhenyu Xu, Hao Deng, Ruifeng Kan   +6 more
doaj   +1 more source

Design of Few-Mode Fibers for Mode-Division Multiplexing Transmission

IEEE Photonics Journal, 2013
We investigate the fiber parameters that meet the design conditions for low bending loss and an effectively few-mode operation on few-mode fibers with a step-index profile and a W-shaped refractive index profile for mode-division multiplexing ...
Motoki Kasahara, Kunimasa Saitoh, Taiji Sakamoto, Nobutomo Hanzawa, Takashi Matsui, Kyozo Tsujikawa, Fumihiko Yamamoto, Masanori Koshiba   +7 more
doaj   +1 more source

Improving the chromatic dispersion tolerance in long-haul fibre links using the coherent optical orthogonal frequency division multiplexing [PDF]

, 2010
Numerical simulations of the coherent optical orthogonal frequency division multiplexing modems are undertaken to investigate the effect of the adaptive modulation, the number of sub-carriers, the cyclic prefix (CP) length, the clipping ratio ...
Ghassemlooy, Zabih, Ng, Wai Pang, Z. Ghassemlooy, M.A. Jarajreh, Jarajreh, Mutsam Abdel-karim, W.P. Ng   +5 more
core   +1 more source

Multi-element fiber for space-division multiplexing

, 2013
A novel approach of using multi-element fiber (MEF) technology in space-division multiplexing (SDM) systems is presented. This paper reviews the progress in fabrication and characterization of MEF based both ultra-low crosstalk transmission and amplifier
V. J. F. Rancaño, May-Smith, T.C., Petropoulos, P., Jain, S., Richardson, D.J., T. C. May-Smith, S. Jain, J. K. Sahu, D. J. Richardson, P. Petropoulos, Sahu, J.K., Rancaño, V.J.F., A. Webb, Webb, A.   +13 more
core   +1 more source

DSP complexity of mode-division multiplexed receivers

Optics Express, 2012
The complexities of common equalizer schemes are analytically analyzed in this paper in terms of complex multiplications per bit. Based on this approach we compare the complexity of mode-division multiplexed digital signal processing algorithms with different numbers of multiplexed modes in terms of modal dispersion and distance.
Inan, B., Spinnler, B., Ferreira, F., Borne, van den, D., Lobato, A., Adhikari, S., Sleiffer, V.A.J.M., Kuschnerov, M., Hanik, N., Jansen, S.L.   +9 more
openaire   +3 more sources

Handling mode and polarization in fiber by fs-laser inscribed (de)multiplexer and silicon switch array

PhotoniX, 2023
The emergence of dynamic optical switching has opened up new perspectives for lightening the ever growing load on the electrical switches and routers, to meet the increasing demand on high-speed and flexible data processing and management in fiber-optic ...
Kang Li, Min Yang, Chengkun Cai, Xiaoping Cao, Guofeng Yan, Guangze Wu, Yuanjian Wan, Jian Wang   +7 more
doaj   +1 more source

MDM-TDM PON Utilizing Self-Coherent Detection-Based OLT and RSOA-Based ONU for High Power Budget

IEEE Photonics Journal, 2016
A cost-effective mode-division-multiplexing and time-division-multiplexing passive optical network (MDM-TDM PON) utilizing a self-coherent detection for upstream signal at optical line terminal (OLT) and a high-gain reflective semiconductor optical ...
Yuanxiang Chen, Juhao Li, Peng Zhou, Paikun Zhu, Yu Tian, Zhongying Wu, Jinglong Zhu, Ke Liu, Dawei Ge, Jingbiao Chen, Yongqi He, Zhangyuan Chen   +11 more
doaj   +1 more source

Spatial heterogeneity of hotspot mutations and clonal relatedness in ovarian endometrioid carcinoma

Molecular Oncology, EarlyView.
Spatially resolved analysis revealed heterogeneous distributions of selected cancer‐associated mutations within ovarian endometrioid carcinomas. Shared mutations between paired endometrial and ovarian tumors supported clonal relatedness. These findings highlight the value of sampling multiple tumor regions when interpreting molecular profiles ...
Takahito Ashihara, Kosuke Murakami, Shiro Takamatsu, Akiko Kanto, Seiichi Mori, Tomoyuki Otani, Kazuko Sakai, Yasushi Kotani, Kazuto Nishio, Kaoru Abiko, Noriomi Matsumura   +10 more
wiley   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Mode-Selective Photonic Lanterns for Orbital Angular Momentum Mode Division Multiplexing

Applied Sciences, 2019
We analyze the mode evolution in mode-selective photonic lanterns with respect to taper lengths, affected by possible mode phase differences varying along the taper.
Yan Li, Yang Li, Lipeng Feng, Chen Yang, Wei Li, Jifang Qiu, Xiaobin Hong, Yong Zuo, Hongxiang Guo, Weijun Tong, Jian Wu   +10 more
doaj   +1 more source