Current and frequency modulation characteristics for continuous-wave quantum cascade lasers at 9.06 μm

Lei Tao; Kang Sun; David J. Miller; M. Amir Khan; Mark A. Zondlo

doi:10.1364/OL.37.001358

Current and frequency modulation characteristics for continuous-wave quantum cascade lasers at 9.06 μm

Lei Tao, Kang Sun, David J. Miller, M. Amir Khan, Mark A. Zondlo

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

28 Scopus citations

Abstract

We report the characteristics of current induced frequency modulation (FM) for two continuous-wave quantum cascade lasers (QCLs) at 9.06 μm. Both the frequency tuning rate and the phase shift between intensity modulation and FM are measured at different modulation frequencies from 10 Hz to 200 kHz. The frequency tuning rate of the QCLs depends on both the modulation frequency and amplitude. The tested QCL has been used to detect ambient water vapor with wavelength modulation spectroscopy for validation with a numerical model.

Original language	English (US)
Pages (from-to)	1358-1360
Number of pages	3
Journal	Optics Letters
Volume	37
Issue number	8
DOIs	https://doi.org/10.1364/OL.37.001358
State	Published - Apr 15 2012

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OL.37.001358

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abstract = "We report the characteristics of current induced frequency modulation (FM) for two continuous-wave quantum cascade lasers (QCLs) at 9.06 μm. Both the frequency tuning rate and the phase shift between intensity modulation and FM are measured at different modulation frequencies from 10 Hz to 200 kHz. The frequency tuning rate of the QCLs depends on both the modulation frequency and amplitude. The tested QCL has been used to detect ambient water vapor with wavelength modulation spectroscopy for validation with a numerical model.",

author = "Lei Tao and Kang Sun and Miller, {David J.} and Khan, {M. Amir} and Zondlo, {Mark A.}",

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T1 - Current and frequency modulation characteristics for continuous-wave quantum cascade lasers at 9.06 μm

AU - Tao, Lei

AU - Sun, Kang

AU - Miller, David J.

AU - Khan, M. Amir

AU - Zondlo, Mark A.

PY - 2012/4/15

Y1 - 2012/4/15

N2 - We report the characteristics of current induced frequency modulation (FM) for two continuous-wave quantum cascade lasers (QCLs) at 9.06 μm. Both the frequency tuning rate and the phase shift between intensity modulation and FM are measured at different modulation frequencies from 10 Hz to 200 kHz. The frequency tuning rate of the QCLs depends on both the modulation frequency and amplitude. The tested QCL has been used to detect ambient water vapor with wavelength modulation spectroscopy for validation with a numerical model.

AB - We report the characteristics of current induced frequency modulation (FM) for two continuous-wave quantum cascade lasers (QCLs) at 9.06 μm. Both the frequency tuning rate and the phase shift between intensity modulation and FM are measured at different modulation frequencies from 10 Hz to 200 kHz. The frequency tuning rate of the QCLs depends on both the modulation frequency and amplitude. The tested QCL has been used to detect ambient water vapor with wavelength modulation spectroscopy for validation with a numerical model.

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JO - Optics Letters

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Current and frequency modulation characteristics for continuous-wave quantum cascade lasers at 9.06 μm

Abstract

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