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Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 759
Author(s):  
Paweł Wyborski ◽  
Anna Musiał ◽  
Paweł Mrowiński ◽  
Paweł Podemski ◽  
Vasilij Baumann ◽  
...  

We investigated emission properties of photonic structures with InAs/InGaAlAs/InP quantum dashes grown by molecular beam epitaxy on a distributed Bragg reflector. In high-spatial-resolution photoluminescence experiment, well-resolved sharp spectral lines are observed and single-photon emission is detected in the third telecommunication window characterized by very low multiphoton events probabilities. The photoluminescence spectra measured on simple photonic structures in the form of cylindrical mesas reveal significant intensity enhancement by a factor of 4 when compared to a planar sample. These results are supported by simulations of the electromagnetic field distribution, which show emission extraction efficiencies even above 18% for optimized designs. When combined with relatively simple and undemanding fabrication approach, it makes this kind of structures competitive with the existing solutions in that spectral range and prospective in the context of efficient and practical single-photon sources for fiber-based quantum networks applications.


2019 ◽  
Vol 18 (4) ◽  
pp. 1455-1468
Author(s):  
Md. Asaduzzaman Jabin ◽  
Md. Zamiya Zaman Tanmay ◽  
Foyj Ullah Khan ◽  
Yunus Ahmed ◽  
Md. Juwel Rana ◽  
...  

2017 ◽  
Vol 132 (2) ◽  
pp. 382-386 ◽  
Author(s):  
P. Mrowiński ◽  
Ł. Dusanowski ◽  
A. Somers ◽  
S. Höfling ◽  
J.P. Reithmaier ◽  
...  

2015 ◽  
Vol 24 (03) ◽  
pp. 1550026 ◽  
Author(s):  
Chunfu Cheng ◽  
Yiwen Ou ◽  
Jinye Zhang ◽  
Qinghua Lv ◽  
Jinrong Zhu ◽  
...  

An all-normal dispersion photonic crystal fiber with nearly zero flattened dispersion at 1550 nm is designed for generating high coherent broadband supercontinuum. It is found that an all normal dispersion photonic crystal fiber with nearly zero flattened dispersion at 1550 nm can be obtained by appropriately designing geometrical parameters and optimizing the index of the first ring of air-holes with filling different index liquid of the photonic crystal fiber. The results show that the optimized design photonic crystal fiber for pumping at 1550 nm is suitable for flat broadband and high coherent supercontinuum generation with only 4 kW input peak power in a 40 cm long of the photonic crystal fiber. It is also found the weaker the dispersion effect is, the more advantage to the high coherent broadband supercontinuum generation due to the self-phase modulation.


2015 ◽  
Vol 17 (2) ◽  
pp. 023031 ◽  
Author(s):  
J Dajczgewand ◽  
R Ahlefeldt ◽  
T Böttger ◽  
A Louchet-Chauvet ◽  
J-L Le Gouët ◽  
...  

2014 ◽  
Vol 36 (7) ◽  
pp. 1203-1208 ◽  
Author(s):  
Xiaozhe Han ◽  
Lifan Shen ◽  
Edwin Yue Bun Pun ◽  
Tiecheng Ma ◽  
Hai Lin

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