Small oxide‐free vertical‐cavity surface‐emitting lasers with high efficiency and high power. Issue 24 (1st November 2014)

• Record Type: Journal Article
• Authors: Yang, Xu; Li, Ming Xin; Zhao, Guowei; Freisem, Sabine; Deppe, Dennis G.
• Is Part Of: Electronics letters. Volume 50:Issue 24(2014)
• Page Start: 1864
• Page End: 1866
• Publication Date: 2014-11-01
• Subjects: surface emitting lasers; oxide‐free vertical‐cavity surface‐emitting lasers -- high external differential quantum efficiency -- VCSEL; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2014.3352
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : 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.