High-performance 5.5μm quantum cascade lasers with high-reflection coating

G. Scarpa; N. Ulbrich; J. Roßkopf; A. Sigl; G. Böhm; G. Abstreiter; M. C. Amann

doi:10.1049/ip-opt:20020610

High-performance 5.5μm quantum cascade lasers with high-reflection coating

G. Scarpa
, N. Ulbrich
, J. Roßkopf
, A. Sigl
, G. Böhm
, G. Abstreiter
, M. C. Amann

Walter Schottky Institut

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

A high-reflection coating for 5.5 μm strain-compensated InGaAs/InAlAs quantum cascade lasers is described. Using a high-reflection coating on both facets of a laser cavity, a threshold current density of 0.5 kA/cm² was observed at liquid-nitrogen temperature, whereas for an uncoated structure of comparable length the threshold current density was 1 kA/cm². Laser action for a 2.1 mm long and 30 μm wide device with coated facets was achieved in pulsed mode up to the record high temperature of 470 K. A 2.5 mm long and 30 μm wide device with uncoated facets shows lasing action up to 440 K.

Original language	English
Pages (from-to)	201-205
Number of pages	5
Journal	IEE Proceedings: Optoelectronics
Volume	149
Issue number	5-6
DOIs	https://doi.org/10.1049/ip-opt:20020610
State	Published - Oct 2002

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10.1049/ip-opt:20020610

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title = "High-performance 5.5μm quantum cascade lasers with high-reflection coating",

abstract = "A high-reflection coating for 5.5 μm strain-compensated InGaAs/InAlAs quantum cascade lasers is described. Using a high-reflection coating on both facets of a laser cavity, a threshold current density of 0.5 kA/cm2 was observed at liquid-nitrogen temperature, whereas for an uncoated structure of comparable length the threshold current density was 1 kA/cm2. Laser action for a 2.1 mm long and 30 μm wide device with coated facets was achieved in pulsed mode up to the record high temperature of 470 K. A 2.5 mm long and 30 μm wide device with uncoated facets shows lasing action up to 440 K.",

author = "G. Scarpa and N. Ulbrich and J. Ro{\ss}kopf and A. Sigl and G. B{\"o}hm and G. Abstreiter and Amann, \{M. C.\}",

year = "2002",

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volume = "149",

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T1 - High-performance 5.5μm quantum cascade lasers with high-reflection coating

AU - Scarpa, G.

AU - Ulbrich, N.

AU - Roßkopf, J.

AU - Sigl, A.

AU - Böhm, G.

AU - Abstreiter, G.

AU - Amann, M. C.

PY - 2002/10

Y1 - 2002/10

N2 - A high-reflection coating for 5.5 μm strain-compensated InGaAs/InAlAs quantum cascade lasers is described. Using a high-reflection coating on both facets of a laser cavity, a threshold current density of 0.5 kA/cm2 was observed at liquid-nitrogen temperature, whereas for an uncoated structure of comparable length the threshold current density was 1 kA/cm2. Laser action for a 2.1 mm long and 30 μm wide device with coated facets was achieved in pulsed mode up to the record high temperature of 470 K. A 2.5 mm long and 30 μm wide device with uncoated facets shows lasing action up to 440 K.

AB - A high-reflection coating for 5.5 μm strain-compensated InGaAs/InAlAs quantum cascade lasers is described. Using a high-reflection coating on both facets of a laser cavity, a threshold current density of 0.5 kA/cm2 was observed at liquid-nitrogen temperature, whereas for an uncoated structure of comparable length the threshold current density was 1 kA/cm2. Laser action for a 2.1 mm long and 30 μm wide device with coated facets was achieved in pulsed mode up to the record high temperature of 470 K. A 2.5 mm long and 30 μm wide device with uncoated facets shows lasing action up to 440 K.

UR - https://www.scopus.com/pages/publications/0036823205

U2 - 10.1049/ip-opt:20020610

DO - 10.1049/ip-opt:20020610

M3 - Article

AN - SCOPUS:0036823205

SN - 1350-2433

VL - 149

SP - 201

EP - 205

JO - IEE Proceedings: Optoelectronics

JF - IEE Proceedings: Optoelectronics

IS - 5-6

ER -

High-performance 5.5μm quantum cascade lasers with high-reflection coating

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