Widely tunable single-mode quantum cascade lasers with two monolithically coupled Fabry-Perot cavities

Sven Höfling; J. Heinrich; J. P. Reithmaier; A. Forchel; J. Seufert; M. Fischer; J. Koeth

doi:10.1063/1.2404933

Widely tunable single-mode quantum cascade lasers with two monolithically coupled Fabry-Perot cavities

Sven Höfling, J. Heinrich, J. P. Reithmaier, A. Forchel, J. Seufert, M. Fischer, J. Koeth

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

Abstract

The authors report on tunable, miniaturized, two-segment coupled cavity quantum cascade lasers fabricated in a process with a single dry etch step. They observed controllable vernier-effect-based mode switching, induced by the spectral shift of the short cavity's Fabry-Perot mode comb due to Joule heating. With the help of this discontinuous tuning mechanism, single-mode operation with routinely similar to 20 dB side mode suppression ratio was achieved over a broad spectral range. The authors measured a quasicontinuous tuning range of 12 cm(-1) (138 nm) and an entire single-mode tuning range of 16.5 cm(-1) (190 nm), centered around 933 cm(-1) (10.7 mu m). (c) 2006 American Institute of Physics.

Original language	English
Article number	241126
Number of pages	3
Journal	Applied Physics Letters
Volume	89
Issue number	24
DOIs	https://doi.org/10.1063/1.2404933
Publication status	Published - 11 Dec 2006

Keywords

CONTINUOUS-WAVE OPERATION
DISTRIBUTED-FEEDBACK
SEMICONDUCTOR-LASER
SUPERLATTICE

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10.1063/1.2404933

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title = "Widely tunable single-mode quantum cascade lasers with two monolithically coupled Fabry-Perot cavities",

abstract = "The authors report on tunable, miniaturized, two-segment coupled cavity quantum cascade lasers fabricated in a process with a single dry etch step. They observed controllable vernier-effect-based mode switching, induced by the spectral shift of the short cavity's Fabry-Perot mode comb due to Joule heating. With the help of this discontinuous tuning mechanism, single-mode operation with routinely similar to 20 dB side mode suppression ratio was achieved over a broad spectral range. The authors measured a quasicontinuous tuning range of 12 cm(-1) (138 nm) and an entire single-mode tuning range of 16.5 cm(-1) (190 nm), centered around 933 cm(-1) (10.7 mu m). (c) 2006 American Institute of Physics.",

keywords = "CONTINUOUS-WAVE OPERATION, DISTRIBUTED-FEEDBACK, SEMICONDUCTOR-LASER, SUPERLATTICE",

author = "Sven H{\"o}fling and J. Heinrich and Reithmaier, {J. P.} and A. Forchel and J. Seufert and M. Fischer and J. Koeth",

year = "2006",

month = dec,

day = "11",

doi = "10.1063/1.2404933",

language = "English",

volume = "89",

journal = "Applied Physics Letters",

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publisher = "American Institute of Physics",

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T1 - Widely tunable single-mode quantum cascade lasers with two monolithically coupled Fabry-Perot cavities

AU - Höfling, Sven

AU - Heinrich, J.

AU - Reithmaier, J. P.

AU - Forchel, A.

AU - Seufert, J.

AU - Fischer, M.

AU - Koeth, J.

PY - 2006/12/11

Y1 - 2006/12/11

N2 - The authors report on tunable, miniaturized, two-segment coupled cavity quantum cascade lasers fabricated in a process with a single dry etch step. They observed controllable vernier-effect-based mode switching, induced by the spectral shift of the short cavity's Fabry-Perot mode comb due to Joule heating. With the help of this discontinuous tuning mechanism, single-mode operation with routinely similar to 20 dB side mode suppression ratio was achieved over a broad spectral range. The authors measured a quasicontinuous tuning range of 12 cm(-1) (138 nm) and an entire single-mode tuning range of 16.5 cm(-1) (190 nm), centered around 933 cm(-1) (10.7 mu m). (c) 2006 American Institute of Physics.

AB - The authors report on tunable, miniaturized, two-segment coupled cavity quantum cascade lasers fabricated in a process with a single dry etch step. They observed controllable vernier-effect-based mode switching, induced by the spectral shift of the short cavity's Fabry-Perot mode comb due to Joule heating. With the help of this discontinuous tuning mechanism, single-mode operation with routinely similar to 20 dB side mode suppression ratio was achieved over a broad spectral range. The authors measured a quasicontinuous tuning range of 12 cm(-1) (138 nm) and an entire single-mode tuning range of 16.5 cm(-1) (190 nm), centered around 933 cm(-1) (10.7 mu m). (c) 2006 American Institute of Physics.

KW - CONTINUOUS-WAVE OPERATION

KW - DISTRIBUTED-FEEDBACK

KW - SEMICONDUCTOR-LASER

KW - SUPERLATTICE

U2 - 10.1063/1.2404933

DO - 10.1063/1.2404933

M3 - Article

SN - 0003-6951

VL - 89

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 24

M1 - 241126

ER -

Widely tunable single-mode quantum cascade lasers with two monolithically coupled Fabry-Perot cavities

Abstract

Keywords

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