Dynamic spectral characteristics measurement of DFB interband cascade laser under injection current tuning

Du, Zhenhui; Luo, Gang; An, Yi; Li, Jinyi

doi:10.1063/1.4955411

Cited by 26 publications

(12 citation statements)

References 22 publications

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“…This value is higher than for a QCL, but generally lower than for interband lasers emitting at shorter wavelengths. While an earlier frequency-modulation study of DFB ICLs [232] found a much larger intrinsic linewidth (> 300 kHz), that measurement may have been influenced by noise from the driver current [233].…”

Section: Linewidth and Stabilitymentioning

confidence: 71%

“…Because the noise decreases with increasing frequency, techniques such as wavelength modulation spectroscopy (WMS) and frequency modulation spectroscopy (FMS) can provide much more sensitive chemical detection [232]. When a small sinusoidal modulation is added to the slow current sweep of a tunable laser, the magnitude and shape of the multiple harmonic orders that are produced can provide information about the concentration and temperature of the absorbing species.…”

Section: Linewidth and Stabilitymentioning

confidence: 99%

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The Interband Cascade Laser

et al. 2020

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We review the history, development, design principles, experimental operating characteristics, and specialized architectures of interband cascade lasers for the mid-wave infrared spectral region. We discuss the present understanding of the mechanisms limiting the ICL performance and provide a perspective on the potential for future improvements. Such device properties as the threshold current and power densities, continuous-wave output power, and wall-plug efficiency are compared with those of the quantum cascade laser. Newer device classes such as ICL frequency combs, interband cascade vertical-cavity surface-emitting lasers, interband cascade LEDs, interband cascade detectors, and integrated ICLs are reviewed for the first time.

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Section: Linewidth and Stabilitymentioning

confidence: 71%

Section: Linewidth and Stabilitymentioning

confidence: 99%

The Interband Cascade Laser

et al. 2020

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“…DFB-ICLs provide single mode, narrow linewidth (~0.7 MHz) [62], low power consumption (hundreds of milliwatts), a compact system solution, and RT-cw emission in the 3-6 µm range, which fill the MIR gap perfectly. DFB-ICLs have been used for the ppb-level detection of many important gases, especially hydrocarbon species [63][64][65][66][67][68][69], which leads to many important applications in various areas, for example, clinical diagnostics [70,71], combustion probing [72], environmental monitoring [73,74], and remote sensing.…”

Section: Interband Cascade Lasersmentioning

confidence: 99%

Mid-Infrared Tunable Laser-Based Broadband Fingerprint Absorption Spectroscopy for Trace Gas Sensing: A Review

Zhang

et al. 2019

Applied Sciences

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130

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The vast majority of gaseous chemical substances exhibit fundamental rovibrational absorption bands in the mid-infrared spectral region (2.5–25 μm), and the absorption of light by these fundamental bands provides a nearly universal means for their detection. A main feature of optical techniques is the non-intrusive in situ detection of trace gases. We reviewed primarily mid-infrared tunable laser-based broadband absorption spectroscopy for trace gas detection, focusing on 2008–2018. The scope of this paper is to discuss recent developments of system configuration, tunable lasers, detectors, broadband spectroscopic techniques, and their applications for sensitive, selective, and quantitative trace gas detection.

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“…We carefully set all the working parameters of the sensor, including the optical path, gas flow, modulation amplitude, temperature, and so on. The instantaneous line width, dynamic tuning rate, and slope efficiency of ICLs have been reported to be suitable for precision spectroscopy measurements [ 36 ]. The laser power before and after HWG were 5.5 mW and 0.9 mW, respectively.…”

Section: Sensor Configurationmentioning

confidence: 99%

Measurement of Atmospheric Dimethyl Sulfide with a Distributed Feedback Interband Cascade Laser

Wang

Yuan

et al. 2018

Sensors

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This paper presents a mid-infrared dimethyl sulfide (CH3SCH3, DMS) sensor based on tunable laser absorption spectroscopy with a distributed feedback interband cascade laser to measure DMS in the atmosphere. Different from previous work, in which only DMS was tested and under pure nitrogen conditions, we measured DMS mixed by common air to establish the actual atmospheric measurement environment. Moreover, we used tunable laser absorption spectroscopy with spectral fitting to enable multi-species (i.e., DMS, CH4, and H2O) measurement simultaneously. Meanwhile, we used empirical mode decomposition and greatly reduced the interference of optical fringes and noise. The sensor performances were evaluated with atmospheric mixture in laboratory conditions. The sensor’s measurement uncertainties of DMS, CH4, and H2O were as low as 80 ppb, 20 ppb, and 0.01% with an integration time 1 s, respectively. The sensor possessed a very low detection limit of 9.6 ppb with an integration time of 164 s for DMS, corresponding to an absorbance of 7.4 × 10−6, which showed a good anti-interference ability and stable performance after optical interference removal. We demonstrated that the sensor can be used for DMS measurement, as well as multi-species atmospheric measurements of DMS, H2O, and CH4 simultaneously.

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Dynamic spectral characteristics measurement of DFB interband cascade laser under injection current tuning

Cited by 26 publications

References 22 publications

The Interband Cascade Laser

The Interband Cascade Laser

Mid-Infrared Tunable Laser-Based Broadband Fingerprint Absorption Spectroscopy for Trace Gas Sensing: A Review

Measurement of Atmospheric Dimethyl Sulfide with a Distributed Feedback Interband Cascade Laser

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