Lateral emission highly polarized single-mode nanobelt laser (Conference Presentation)

Pengfei Xu; Shikai Liu; Ming Li; Zheng Zhou; Zhaohui Ren; Qing Yang

doi:10.1117/12.2251388

20 April 2017 Lateral emission highly polarized single-mode nanobelt laser (Conference Presentation)

Pengfei Xu, Shikai Liu, Ming Li, Zheng Zhou, Zhaohui Ren, Qing Yang

Proceedings Volume 10123, Novel In-Plane Semiconductor Lasers XVI; 101230N (2017) https://doi.org/10.1117/12.2251388
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

Nanoscale lasers are the key component in the integrated photonics chips and have attracted much interests. Nanoblets and nanowires lasers, as one of the candidates for the nanoscale lasers, have been developed for one more decades. Many kinds of nanowire lasers with different functionalities, such as wavelength tunable, single mode, polarized emission and so on, have been demonstrated. However, the reported single mode nanowire lasers are mostly realized through microfabrication process, careful manipulation and complicated structures. Here, we present a new type of lateral emission single mode nanobelt lasers with high polarization ratio which are fabricated by the one step traditional VLS (Vapor Liquid Solid) growth. Different from the traditional nanobelt lasers which are based on the FP cavity formed in the longitudinal direction, the emission of this novel nanoblet laser is lateral which is contribute to the special wire-like structures grown on the nanobelt. It shows band edge emission and the wavelength is centered at 712.6 nm with linewidth about 0.18 nm. The threshold reach as low as 15 uJ/cm2 benefit from the unique morphology which provides enhanced confinement factor for optical modes. Meanwhile the laser emission is highly polarized with polarization ration as high as 0.91. This lateral emission single mode nanobelt laser with high polarization ratio, low threshold and simple fabrication technique offers an economic and effective choice to the future optical applications.

Conference Presentation

Citation Download Citation

Pengfei Xu, Shikai Liu, Ming Li, Zheng Zhou, Zhaohui Ren, and Qing Yang "Lateral emission highly polarized single-mode nanobelt laser (Conference Presentation)", Proc. SPIE 10123, Novel In-Plane Semiconductor Lasers XVI, 101230N (20 April 2017); https://doi.org/10.1117/12.2251388

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KEYWORDS

Nanowires

Polarization

Laser development

Edge emitting semiconductor lasers

Integrated photonics

Laser applications

Liquids

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