Short (~1μm) Quantum-Wire Single-Mode Photonic-Crystal Microcavity Laser

Author(s):  
Kirill Atlasov ◽  
Milan Calic ◽  
Fredrik Karlsson ◽  
Pascal Gallo ◽  
Alok Rudra ◽  
...  
2009 ◽  
Vol 17 (20) ◽  
pp. 18178 ◽  
Author(s):  
Kirill A. Atlasov ◽  
Milan Calic ◽  
Karl Fredrik Karlsson ◽  
Pascal Gallo ◽  
Alok Rudra ◽  
...  

2009 ◽  
Vol 21 (17) ◽  
pp. 1166-1168 ◽  
Author(s):  
Ling Lu ◽  
A. Mock ◽  
M. Bagheri ◽  
Jiang-Rong Cao ◽  
Sang-Jun Choi ◽  
...  

Author(s):  
Kirill A. Atlasov ◽  
Alessandro Surrente ◽  
Milan Calic ◽  
Karl Fredrik Karlsson ◽  
Pascal Gallo ◽  
...  

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2344
Author(s):  
Chao Wu ◽  
Wei Wei ◽  
Xueguang Yuan ◽  
Yangan Zhang ◽  
Xin Yan ◽  
...  

A low-threshold miniaturized single-mode nanowire laser operating at telecommunication wavelengths was proposed and simulated. The device was constructed by combining a single InGaAs nanowire with a photonic crystal microcavity and asymmetric distributed-Bragg-reflector mirrors. The mode characteristics and threshold properties were calculated using the three-dimensional finite-different time-domain method. Due to the effective subwavelength confinement and strong optical feedback, provided by the photonic crystal microcavity, and distributed-Bragg-reflector mirrors, respectively, the confinement factor, end-facet reflectivity, and quality factor significantly improved. A lowest threshold of ~80 cm−1 and ultra-small cut-off radius of ~40 nm are obtained, reduced by 67%, and 70%, respectively, compared with a traditional nanowire laser. In addition, due to the photonic band gap effect, single-mode lasing is achieved with a high side-mode suppression ratio of >12 dB. By placing several identical nanowires in the photonic crystal with different lattice constants, an on-chip laser array is realized, which is promising in wavelength division multiplexing applications. This work may pave the way for the development of low-threshold miniaturized nanolasers and low-consumption high-density photonic integrated circuits.


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