Frequency-narrowed external-cavity broad-area-diode for rubidium laser pumping |
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| Authors: | Zining Yang Yuandong Li Hongyan Wang Qisheng Lu and Xiaojun Xu |
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| Institution: | College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | Using an external cavity with holographic grating, we demonstrate the spectral narrowing of a high power broad-area-diode with a single emitter. The spectral bandwidth of less than 15 GHz is obtained with output power exceeding 10 W and external cavity efficiency exceeding 60%. Absorption of 98% of the laser radiation by a 25-mm rubidium vapor cell filled with 600-torr ethane at a temperature of 368 K is acquired, which demonstrates the availability of this pump source for efficient rubidium laser pumping. |
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