Demonstration of electrically injected vertical-cavity surface-emitting lasers with post-supported high-contrast gratings

Jing Zhang; Chenxi Hao; Wanhua Zheng; Dieter Bimberg; Anjin Liu

doi:10.1364/PRJ.447633

Journals >Photonics Research >Volume 10 >Issue 5 >Page 1170 > Article

Photonics Research
Vol. 10, Issue 5, 1170 (2022)

Demonstration of electrically injected vertical-cavity surface-emitting lasers with post-supported high-contrast gratings | On the Cover

Jing Zhang^1、2, Chenxi Hao^1、2, Wanhua Zheng^1、2、3, Dieter Bimberg^4、5, and Anjin Liu^1、2、*

Author Affiliations

¹State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China

²Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

³Key Laboratory of Solid-State Optoelectronics Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China

⁴Bimberg Chinese-German Center for Green Photonics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

⁵Institute of Solid State Physics and Center of Nanophotonics, Technische Universität Berlin, 10623 Berlin, Germany

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DOI: 10.1364/PRJ.447633 Cite this Article Set citation alerts

Jing Zhang, Chenxi Hao, Wanhua Zheng, Dieter Bimberg, Anjin Liu. Demonstration of electrically injected vertical-cavity surface-emitting lasers with post-supported high-contrast gratings[J]. Photonics Research, 2022, 10(5): 1170 Copy Citation Text

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Abstract

We experimentally demonstrate for the first time to our knowledge electrically injected vertical-cavity surface-emitting lasers (VCSELs) with post-supported high-contrast gratings (HCGs) at 940 nm. The HCG-VCSELs have two posts to support the air-suspended HCGs, which are realized by simple fabrication without critical point drying. The HCG-VCSEL achieves a threshold current of about 0.65 mA and a side-mode suppression ratio of 43.6 dB under continuous-wave operation at 25°C. Theoretically the HCG-VCSEL with a

λ / 2

-cavity for the transverse magnetic polarization has a smaller effective mode length of

1.38 \cdot (λ / n)

. Thus, the relaxation resonance frequency can be increased by 16% compared with that of the conventional VCSEL. The modulation speed of 100 Gbit/s for the HCG-VCSEL is expected in the on–off keying modulation format. Our easy design of HCG-VCSELs has great potential for applications in optical interconnects, sensing, illumination, and so on.