Diode-pumped double-pulsed Ho:Tm:LuLF laser at 2.05 µm for CO<sub>2</sub> differential absorption lidar (DIAL)

Songsheng Chen; Jirong Yu; Mulugeta Petros; Yingxin Bai; Bo C. Trieu; Upendra N. Singh; Michael J. Kavaya

doi:10.1117/12.568418

4 November 2004 Diode-pumped double-pulsed Ho:Tm:LuLF laser at 2.05 μm for CO₂ differential absorption lidar (DIAL)

Songsheng Chen, Jirong Yu, Mulugeta Petros, Yingxin Bai, Bo C. Trieu, Upendra N. Singh, Michael J. Kavaya

Proceedings Volume 5575, Laser Radar Techniques for Atmospheric Sensing; (2004) https://doi.org/10.1117/12.568418
Event: Remote Sensing, 2004, Maspalomas, Canary Islands, Spain

Abstract

It has been realized that eye-safe 2-mm all-solid-state lasers are important laser sources for an accurate measurement of the CO2 concentration in the atmosphere. Served as laser transmitters, they can be integrated into ground-based, airborne-base, and spaceborne-based CO2 Differential Absorption Lidars (DIALs) to accomplish the measurement. In addition, the lasers are also ideal laser pumping sources for a ZnGeP₂ (ZGP) Optical Parametric Oscillator (OPO) or an Optical Parametric Amplifier (OPA) to achieve tunable laser output in 3~5 mm. In this spectrum region, the other important greenhouse gases, water vapor (H₂O), carbon monoxide (CO), and methane (CH₄) in the atmosphere can be measured. In this paper, we report a diode-pumped, double-pulsed, Q-switched, eye-safe Ho:Tm:LuLF laser at 2.05 mm developed for ground-based and airborne-based CO₂ Differential Absorption Lidars (DIALs). The technology can be easily transferred to a space-borne CO₂ DIAL in the future. The total output pulse energy of the laser is 220 mJ and 204 mJ per pair of pulses at 2 Hz and at 10 Hz respectively. The related optical energy conversion efficiency is 6.7% and 5.9% respectively.

Citation Download Citation

Songsheng Chen, Jirong Yu, Mulugeta Petros, Yingxin Bai, Bo C. Trieu, Upendra N. Singh, and Michael J. Kavaya "Diode-pumped double-pulsed Ho:Tm:LuLF laser at 2.05 μm for CO₂ differential absorption lidar (DIAL)", Proc. SPIE 5575, Laser Radar Techniques for Atmospheric Sensing, (4 November 2004); https://doi.org/10.1117/12.568418

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