Experimental observation of optical vortex in self-frequency-doubling generation

We present an experimental observation of optical vortices in phase-matching self-frequency doubling (SFD) with a simple laser-diode (LD) end-pumped SFD microchip laser. From experimental and theoretical analysis, it is found that the photons contain a linear combination of the fundamental orbital a...

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Veröffentlicht in:Applied physics letters 2011-12, Vol.99 (24), p.241102-241102-3
Hauptverfasser: Yu, Haohai, Zhang, Huaijin, Wang, Zhengping, Wang, Jiyang, Pan, Zhongben, Zhuang, Shidong, Tang, Dingyuan
Format: Artikel
Sprache:eng
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Zusammenfassung:We present an experimental observation of optical vortices in phase-matching self-frequency doubling (SFD) with a simple laser-diode (LD) end-pumped SFD microchip laser. From experimental and theoretical analysis, it is found that the photons contain a linear combination of the fundamental orbital angular momentum states, and that frequency doubling photons in SFD would recombine with but do not disturb each other. All the results show that the SFD should be an efficient tool for the study of quantum phenomena and has promising applications based on its structural simplicity and compactness.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3670351