Surface emitting distributed feedback quantum cascade laser around 8.3 μm

Wan Hong Guo; Jun Qi Liu; Quan Yong Lu; Wei Zhang; Yu Chao Jiang; Lu Li; Li Jun Wang; Feng Qi Liu; Zhan Guo Wang

doi:10.1088/0256-307X/27/11/114214

Surface emitting distributed feedback quantum cascade laser around 8.3 μm

Wan Hong Guo^*, Jun Qi Liu, Quan Yong Lu, Wei Zhang, Yu Chao Jiang, Lu Li, Li Jun Wang, Feng Qi Liu, Zhan Guo Wang

^*Corresponding author for this work

Center for Quantum Devices (CQD)

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

3 Scopus citations

Abstract

We demonstrate surface emitting distributed feedback quantum cascade lasers emitting at wavelengths from 8.1 μm at 90K to 8.4 μm at 210 K. The second-order metalized grating is carefully designed using a modified coupled-mode theory and fabricated by contact lithography. The devices show single mode behavior with a side mode suppression ratio above 18 dB at all working temperatures. At 90 K, the device emits an optical power of 101mW from the surface and 199mW from the edge. In addition, a double-lobe far-field pattern with a separationof 2.2̊ is obtained in the direction along the waveguide.

Original language	English (US)
Article number	114214
Journal	Chinese Physics Letters
Volume	27
Issue number	11
DOIs	https://doi.org/10.1088/0256-307X/27/11/114214
State	Published - Nov 2010

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Surface emitting distributed feedback quantum cascade laser around 8.3 μm",

abstract = "We demonstrate surface emitting distributed feedback quantum cascade lasers emitting at wavelengths from 8.1 μm at 90K to 8.4 μm at 210 K. The second-order metalized grating is carefully designed using a modified coupled-mode theory and fabricated by contact lithography. The devices show single mode behavior with a side mode suppression ratio above 18 dB at all working temperatures. At 90 K, the device emits an optical power of 101mW from the surface and 199mW from the edge. In addition, a double-lobe far-field pattern with a separationof 2.2̊ is obtained in the direction along the waveguide.",

author = "Guo, {Wan Hong} and Liu, {Jun Qi} and Lu, {Quan Yong} and Wei Zhang and Jiang, {Yu Chao} and Lu Li and Wang, {Li Jun} and Liu, {Feng Qi} and Wang, {Zhan Guo}",

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doi = "10.1088/0256-307X/27/11/114214",

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T1 - Surface emitting distributed feedback quantum cascade laser around 8.3 μm

AU - Guo, Wan Hong

AU - Liu, Jun Qi

AU - Lu, Quan Yong

AU - Zhang, Wei

AU - Jiang, Yu Chao

AU - Li, Lu

AU - Wang, Li Jun

AU - Liu, Feng Qi

AU - Wang, Zhan Guo

PY - 2010/11

Y1 - 2010/11

N2 - We demonstrate surface emitting distributed feedback quantum cascade lasers emitting at wavelengths from 8.1 μm at 90K to 8.4 μm at 210 K. The second-order metalized grating is carefully designed using a modified coupled-mode theory and fabricated by contact lithography. The devices show single mode behavior with a side mode suppression ratio above 18 dB at all working temperatures. At 90 K, the device emits an optical power of 101mW from the surface and 199mW from the edge. In addition, a double-lobe far-field pattern with a separationof 2.2̊ is obtained in the direction along the waveguide.

AB - We demonstrate surface emitting distributed feedback quantum cascade lasers emitting at wavelengths from 8.1 μm at 90K to 8.4 μm at 210 K. The second-order metalized grating is carefully designed using a modified coupled-mode theory and fabricated by contact lithography. The devices show single mode behavior with a side mode suppression ratio above 18 dB at all working temperatures. At 90 K, the device emits an optical power of 101mW from the surface and 199mW from the edge. In addition, a double-lobe far-field pattern with a separationof 2.2̊ is obtained in the direction along the waveguide.

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DO - 10.1088/0256-307X/27/11/114214

M3 - Article

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VL - 27

JO - Chinese Physics Letters

JF - Chinese Physics Letters

IS - 11

M1 - 114214

ER -

Surface emitting distributed feedback quantum cascade laser around 8.3 μm

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