Optically induced fast wavelength modulation in a quantum cascade laser

Gang Chen; Rainer Martini; Seong Wook Park; Clyde G. Bethea; I. Chun A. Chen; P. D. Grant; R. Dudek; H. C. Liu

doi:10.1063/1.3457871

Optically induced fast wavelength modulation in a quantum cascade laser

Gang Chen, Rainer Martini, Seong Wook Park, Clyde G. Bethea, I. Chun A. Chen, P. D. Grant, R. Dudek, H. C. Liu

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31 Scopus citations

Abstract

An optically induced fast wavelength shift is demonstrated in a standard middle infrared (MIR) quantum cascade laser (QCL) by illuminating the front facet with a femtosecond (fs) near infrared (NIR) laser, allowing fast optical frequency modulation (FM) for free space optical communication (FSOC) and FM spectroscopy. Using an etalon as a narrow band-pass wavelength filter, the wavelength modulation (WM) was clearly observed at frequencies up to 1.67 GHz. This approach can also be used for wavelength conversion and might be extended to QCLs operating in different wavelength regions.

Original language	English
Article number	011102
Journal	Applied Physics Letters
Volume	97
Issue number	1
DOIs	https://doi.org/10.1063/1.3457871
State	Published - 5 Jul 2010

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abstract = "An optically induced fast wavelength shift is demonstrated in a standard middle infrared (MIR) quantum cascade laser (QCL) by illuminating the front facet with a femtosecond (fs) near infrared (NIR) laser, allowing fast optical frequency modulation (FM) for free space optical communication (FSOC) and FM spectroscopy. Using an etalon as a narrow band-pass wavelength filter, the wavelength modulation (WM) was clearly observed at frequencies up to 1.67 GHz. This approach can also be used for wavelength conversion and might be extended to QCLs operating in different wavelength regions.",

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AU - Chen, Gang

AU - Martini, Rainer

AU - Park, Seong Wook

AU - Bethea, Clyde G.

AU - Chen, I. Chun A.

AU - Grant, P. D.

AU - Dudek, R.

AU - Liu, H. C.

PY - 2010/7/5

Y1 - 2010/7/5

N2 - An optically induced fast wavelength shift is demonstrated in a standard middle infrared (MIR) quantum cascade laser (QCL) by illuminating the front facet with a femtosecond (fs) near infrared (NIR) laser, allowing fast optical frequency modulation (FM) for free space optical communication (FSOC) and FM spectroscopy. Using an etalon as a narrow band-pass wavelength filter, the wavelength modulation (WM) was clearly observed at frequencies up to 1.67 GHz. This approach can also be used for wavelength conversion and might be extended to QCLs operating in different wavelength regions.

AB - An optically induced fast wavelength shift is demonstrated in a standard middle infrared (MIR) quantum cascade laser (QCL) by illuminating the front facet with a femtosecond (fs) near infrared (NIR) laser, allowing fast optical frequency modulation (FM) for free space optical communication (FSOC) and FM spectroscopy. Using an etalon as a narrow band-pass wavelength filter, the wavelength modulation (WM) was clearly observed at frequencies up to 1.67 GHz. This approach can also be used for wavelength conversion and might be extended to QCLs operating in different wavelength regions.

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Optically induced fast wavelength modulation in a quantum cascade laser

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