Dynamic phase manipulation of vertical-cavity surface-emitting lasers via on-chip integration of microfluidic channels

Vertical-cavity surface-emitting lasers (VCSELs) play a key role in the development of the next generation of optoelectronic technologies, thanks to their unique characteristics, such as low-power consumption, circular beam profile, high modulation speed, and large-scale two-dimensional array. Dynam...

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Veröffentlicht in:Optics express 2021-01, Vol.29 (2), p.1481-1491
Hauptverfasser: Zhao, Zhuangzhuang, Xie, Yiyang, Pan, Guanzhong, Ni, Peinan, Wang, Qiuhua, Dong, Yibo, Hu, Liangchen, Sun, Jie, Chen, Hongda, Xu, Chen, Genevet, Patrice
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Sprache:eng
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Zusammenfassung:Vertical-cavity surface-emitting lasers (VCSELs) play a key role in the development of the next generation of optoelectronic technologies, thanks to their unique characteristics, such as low-power consumption, circular beam profile, high modulation speed, and large-scale two-dimensional array. Dynamic phase manipulation of VCSELs within a compact system is highly desired for a large variety of applications. In this work, we incorporate the emerging microfluidic technologies into the conventional VCSELs through a monolithic integration approach, enabling dynamic phase control of lasing emissions with low power consumption and low thermal generation. As a proof of concept, a beam steering device is experimentally demonstrated by integrating microfluidic channel on a coherently coupled VCSELs array. Experimental results show that the deflection angles of the laser beam from the chip can be tuned from 0° to 2.41° under the injection of liquids with different refractive index into the microchannel. This work opens an entirely new solution to implement a compact laser system with real-time wavefront controllability. It holds great potentials in various applications, including optical fiber communications, laser printing, optical sensing, directional displays, ultra-compact light detection and ranging (LiDAR).
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.414671