Journal of Infrared and Millimeter Waves, Volume. 42, Issue 1, 14(2023)
Switchable dual-wavelength vertical-external-cavity surface- emitting laser
Fig. 1. Schematic of the VECSEL and the normalized optical field distribution within the gain chip
Fig. 2. The relationships between indium contents and thicknesses of InGaAs quantum wells for different gain peak wavelengths (a), and the gain- and reflectivity spectra of the VECSEL(b)
Fig. 3. The measured PL spectra of the active region and the reflectivity spectra of the gain chip
Fig. 4. The PL spectra from the VECSEL devices under different pump powers at the temperature of 0 °C
Fig. 5. The output performance of VECSEL devices (a) and its beam divergence angles at the pump power of 8 W and 20 W (b)
Fig. 6. Lasing spectra of the switchable dual-wavelength VECSEL device with the different pump powers at 0 °C (a), and lasing wavelength changing with temperature at the different pump powers (b)
Fig. 7. The beam quality M2 factors of the VECSEL device with single-wavelength (a) and dual-wavelength operation (b) at 0 °C, inserted curves show the shape at the center of the optical field
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Xue LI, Jj-Ye ZHANG, Jian-Wei ZHANG, Xing ZHANG, Zhuo ZHANG, Yu-Gang ZENG, Jun ZHANG, Yin-Li ZHOU, Hong-Bo ZHU, Yong-Qiang NING, Li QIN, Li-Jun WANG. Switchable dual-wavelength vertical-external-cavity surface- emitting laser[J]. Journal of Infrared and Millimeter Waves, 2023, 42(1): 14
Category: Research Articles
Received: Jan. 12, 2022
Accepted: --
Published Online: Feb. 23, 2023
The Author Email: Jj-Ye ZHANG (zhangjiye@ciomp.ac.cn), Xing ZHANG (zhangx@ciomp.ac.cn)