Optically pumped 5 μm IV-VI VECSEL with Al-heat spreader

被引：33

作者：

Rahim, M. ^{[1
]}

Felder, E. ^{[1
]}

Fill, M. ^{[1
]}

Zogg, H. ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Thin Film Phys Grp, CH-8005 Zurich, Switzerland

来源：

OPTICS LETTERS | 2008年 / 33卷 / 24期

关键词：

D O I：

10.1364/OL.33.003010

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Mid-infrared vertical external cavity surface emitting lasers (VECSELs) for 5 mu m in wavelength have been realized. The active parts are of a simple structure, either a 2 mu m thick PbTe gain layer or two 150 nm PbTe layers embedded in Pb1-xEuxTe barriers. Epitaxial 2.5 pair Pb1-yEuyTe/BaF2 Bragg mirrors are employed to form the cavity, and an Al layer is deposited for improved heat dissipation. Emission up to 300 mW(p) is observed with microsecond pulses or 3 mW cw at 100 K is obtained. Quantum efficiency is up to 14%, and lasing occurs up to 175 K when pumped with a 1.55 mu m wavelength pump laser. (C) 2008 Optical Society of America

引用

页码：3010 / 3012

页数：3

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