Chinese Optics, Volume. 15, Issue 5, 1038(2022)
Narrow line width and magnetism-free vertical-cavity surface-emitting lasers for quantum sensing
In order to realize single mode, narrow linewidth and low magnetism field intensity operation of lasers, Vertical-Cavity Surface-Emitting Lasers (VCSEL) with integrated micro-lens extended cavity was designed and fabricated. First, an epitaxial structure suitable for the micro-lens integration was designed and grown by Metal Organic Chemical Vapor Deposition (MOCVD). The fabrication steps of the micro-lens integrated VCSEL was carried out and the magnetism-free material was used in the electrode deposition. Experimental results indicate that the operating temperature is 90 °C, the laser wavelength is 896.3 nm, the laser power is 1.52 mW, the side mode suppression ratio is as high as 36.3 dB and the operating magnetic field intensity is less than 0.03 nT. A narrow line width and magnetism-free VCSEL suitable for quantum sensing was demonstrated.
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Xing ZHANG, Jian-wei ZHANG, Yin-li ZHOU, Hong-bo Xue, Yong-qiang NING, Li-jun WANG. Narrow line width and magnetism-free vertical-cavity surface-emitting lasers for quantum sensing[J]. Chinese Optics, 2022, 15(5): 1038
Category: Original Article
Received: Jun. 17, 2022
Accepted: --
Published Online: Sep. 29, 2022
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