Zhou Yinli, Zhang Xing, Zhang Jianwei, Cui Jinjiang, Ning Yongqiang, Zeng Yugang, Wang Lijun
Appl Opt. 2022 Mar 20;61(9):2417-2423. doi: 10.1364/AO.450782.
In this paper, the wavelength current tuning characteristics of high-temperature-operation single-mode vertical-cavity surface-emitting lasers (VCSELs) for chip-scale atomic sensing systems are studied. Excellent wavelength current tuning robustness is helpful to improve the stability of atomic sensing systems. By optimizing the size of the oxide aperture combined with surface relief mode control technology, the single-mode VCSEL with an 8 µm oxide aperture can achieve 2.02 mW output power at 355 K, and the wavelength current tuning coefficient is ∼0.25/. This excellent wavelength current tuning robustness results from the low active current density and device heat generation due to the optimized oxide aperture size.
本文研究了用于芯片级原子传感系统的高温工作单模垂直腔面发射激光器（VCSEL）的波长电流调谐特性。优异的波长电流调谐鲁棒性有助于提高原子传感系统的稳定性。通过优化氧化孔径尺寸并结合表面起伏模式控制技术，具有8 µm氧化孔径的单模VCSEL在355 K时可实现2.02 mW的输出功率，波长电流调谐系数约为0.25/。这种优异的波长电流调谐鲁棒性源于优化的氧化孔径尺寸导致的低有源电流密度和器件发热。
