We study the topological states(TSs)of all-dielectric honeycomb valley photonic crystals(VPCs).Breaking the space inversion symmetry of the honeycomb lattice by varying the filling ratio of materials for circular ring...
funded by the German Federal Ministry of Education and Research(BMBF)and supervised by the VDI Technology Center under number 13N15464"Leibniz Center for Photonics in Infection Research(LPI):Multidimensional,multimodal,intelligent imaging platforms";The authors also acknowledge the support from the European Regional Development Fund.
Side-pumping fibre combiners offer several advantages in fibre laser design,including distributed pump absorption,reduced heat load,and improved flexibility and reliability.These benefits are particularly important fo...
This work was supported by the National Natural Science Foundation of China(U2141230)。
In this paper,a novel Wilkinson pulse combiner(WPC)is proposed for the combination of Gaussian pulse signals.The WPC requires a very wide bandwidth,small size and high port isolation.To improve the operating bandwidth...
Side pumping combiners are widely used in fiber laser schemes for their high coupling efficiency, low insertion loss, and multi-point pumping capability. However, side pumping combiners perform differently in coupling...
jointly supported by National Natural Science Foundation of China(Grant No.61701062);Chongqing Research Program of Basic Research and Frontier Technology(Grant No.cstc2019jcyj-msxm X0079);Program for Changjiang Scholars and Innovative Research Team in University(Grant No.IRT16R72)。
Dear editor,The integration of mm Wave and massive multiple-input multiple-output(m MIMO)becomes inevitable in future 5 G wireless communication systems[1],in which the system throughput can be improved by several ord...
supported by the National Key Research & Development(R&D)Plan(No.2016YFB0402301)
We report a distributed-Bragg-reflectors-based 4 × 40 GHz mode-locked laser diode(MLLD) array monolithically integrated with a multimode interference(MMI) combiner. The laser produces 2.98 ps pulses with a timebandwi...
the National Natural Science Foundation of China(NSFC)(Grant No.61871051).
In this paper,we propose and demonstrate simultaneous phase regeneration of four different channels of QPSK signal based on phase sensitive amplification.The configuration can be divided into two parts.The first one u...
supported by NSFC (No. 61571055);fund of SKL of MMW (No. K201815);Important National Science & Technology Specific Projects (2017ZX03001028)
Hybrid precoding and combining have been considered as a promising technology, which can provide a compromise between hardware complexity and system performance in millimeter wave multiple-input multiple-output system...
supported by the National Natural Science Foundation of China(No.61370045);the National Key R&D Program of China(No.2017YFF0104600)
Compared with end pumping fiber combiner, one of the advantages for side pumping combiner is the unlimited pumping points, which means multi-point or cascaded side pumping can be realized. However, the loss mechanism ...
Supported by National Natural Science Foundation of China(11079034)
Cavity combiners have been put forward for high power combining due to their advantages of larger combining ability, variable input channels and less power loss. For a high power cavity combiner, it is better to keep ...