Opto-Electronic Science, 2023, 2 (5): 230003, Published Online: Sep. 21, 2023  

High-speed multiwavelength InGaAs/InP quantum well nanowire array micro-LEDs for next generation optical communications

Author Affiliations
Miniaturized light sources at telecommunication wavelengths are essential components for on-chip optical communication systems. Here, we report the growth and fabrication of highly uniform p-i-n core-shell InGaAs/InP single quantum well (QW) nanowire array light emitting diodes (LEDs) with multi-wavelength and high-speed operations. Two-dimensional cathodoluminescence mapping reveals that axial and radial QWs in the nanowire structure contribute to strong emission at the wavelength of ~1.35 and ~1.55 μm, respectively, ideal for low-loss optical communications. As a result of simultaneous contributions from both axial and radial QWs, broadband electroluminescence emission with a linewidth of 286 nm is achieved with a peak power of ~17 μW. A large spectral blueshift is observed with the increase of applied bias, which is ascribed to the band-filling effect based on device simulation, and enables voltage tunable multi-wavelength operation at the telecommunication wavelength range. Multi-wavelength operation is also achieved by fabricating nanowire array LEDs with different pitch sizes on the same substrate, leading to QW formation with different emission wavelengths. Furthermore, high-speed GHz-level modulation and small pixel size LED are demonstrated, showing the promise for ultrafast operation and ultracompact integration. The voltage and pitch size controlled multi-wavelength high-speed nanowire array LED presents a compact and efficient scheme for developing high-performance nanoscale light sources for future optical communication applications.

Fanlu Zhang, Zhicheng Su, Zhe Li, Yi Zhu, Nikita Gagrani, Ziyuan Li, Mark Lockrey, Li Li, Igor Aharonovich, Yuerui Lu, Hark Hoe Tan, Chennupati Jagadish, Lan Fu. High-speed multiwavelength InGaAs/InP quantum well nanowire array micro-LEDs for next generation optical communications[J]. Opto-Electronic Science, 2023, 2(5): 230003.

引用该论文: TXT   |   EndNote



关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。