Small oxide‐free vertical‐cavity surface‐emitting lasers with high efficiency and high power | Zendy

Yang Xu | Zendy; Li Ming Xin | Zendy; Zhao Guowei | Zendy; Freisem Sabine | Zendy; Deppe Dennis G. | Zendy

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Small oxide‐free vertical‐cavity surface‐emitting lasers with high efficiency and high power

Author(s) -

Yang Xu,

Li Ming Xin,

Zhao Guowei,

Freisem Sabine,

Deppe Dennis G.

Publication year - 2014

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

eISSN - 1350-911X

pISSN - 0013-5194

DOI - 10.1049/el.2014.3352

Subject(s) - materials science , optoelectronics , laser , power (physics) , semiconductor laser theory , vertical cavity surface emitting laser , optics , diode , physics , quantum mechanics

Data are presented showing high external differential quantum efficiency (DQE) and record‐high output power in vertical‐cavity surface‐emitting lasers (VCSELs) with diameters below 3 µm. Good uniformity and reproducibility are achieved in devices with very small sizes. Over 75% DQEs are measured with maximum output powers of 5, 7.3, 8, 8.7 and 11.6 mW for 1, 1.5, 2, 2.5 and 3 µm diameter VCSELs, respectively.

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