Zhi-Wei LI, Zhuo ZHANG, Jian-Wei ZHANG, Xing ZHANG, Yin-Li ZHOU, Yu-Gang ZENG, Yong-Qiang Ning, Li-Jun WANG. Quantum well modulated optical pumped vertical external cavity surface-emitting laser for dual-wavelength generation[J]. Journal of Infrared and Millimeter Waves, 2022, 41(6): 951
- Journal of Infrared and Millimeter Waves
- Vol. 41, Issue 6, 951 (2022)
Fig. 1. ( a) Epitaxial structure of dual wavelength VECSEL gain chip, (b) Energy-band and standing wave distribution diagrams of active regions in the gain chip
Fig. 2. Schematic of the VECSEL setup
Fig. 3. Edge photoluminescence spectra of VECSEL gain chip under different pumping powers when the temperature was controlled at -10 ℃ by TEC
Fig. 4. The output power changing with pump power at temperatures of -10 °C，0 °C and 10°C controlled by TEC
Fig. 5. The lasing wavelength changing with pump powers at -10 °C controlled by TEC
Fig. 6. Pulse shape of the output laser beam from the VECSEL under pumping powers of（a）2.5 W，（b）3.5 W，（c）5.0 W at -10℃controlled by TEC
Fig. 7. Illustration of carrier transport in active region of gain chip under low (a), medium (b) and high (c) pump conditions
Fig. 8. Decay curve of VECSEL chip at different temperature of -10 ℃，0 ℃ and 10 ℃
Fig. 9. Emission far-fields of VECSEL under the pumping power of 5 W at temperature of -10 ℃，Inserted is beam profile from our VECSEL captured by a CCD camera
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20