Results 11 to 20 of about 3,950 (203)
Nonlinear Dynamics of Interband Cascade Laser Subjected to Optical Feedback
Photonics, 2021 We present a theoretical study of the nonlinear dynamics of a long external cavity delayed optical feedback-induced interband cascade laser (ICL). Using the modified Lang–Kobayashi equations, we numerically investigate the effects of some key parameters ...
Hong Han +3 more
doaj +3 more sources
Photoacoustic trace gas detection of OCS using a 2.45 mL Helmholtz resonator and a 4823.3 nm ICL light source [PDF]
PhotoacousticsA miniaturized photoacoustic spectroscopy-based gas sensor is proposed for the purpose of detecting sub-ppm-level carbonyl sulfide (OCS) using a tunable mid-infrared interband cascade laser (ICL) and a Helmholtz photoacoustic cell.
Zijian Gao +6 more
doaj +2 more sources
Long Wavelength Interband Cascade Lasers. [PDF]
Proposed for presentation at the 15th International Conference on Mid-Infrared Optoelectronic Materials and Devices in , ., 2021 InAs-based interband cascade lasers (ICLs) can be more easily adapted toward long wavelength operation than their GaSb counterparts. Devices made from two recent ICL wafers with an advanced waveguide structure are reported, which demonstrate improved device performance in terms of reduced threshold current densities for ICLs near 11 μm or extended ...
J. A. Massengale +4 more
openaire +1 more source
Modeling of Amplitude Squeezing in a Pump-Noise-Suppressed Interband Cascade Laser
IEEE Photonics Journal, 2022 A semi-classical rate equation model for the amplitude squeezing of mid-infrared interband cascade lasers is presented based on Green's function method.
Shiyuan Zhao, Frederic Grillot
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Comparison of laser-based photoacoustic and optical detection of methane [PDF]
Journal of Sensors and Sensor Systems, 2021 The measurement of low methane (CH4) concentrations is a key objective for safety of industrial and public infrastructures and in environmental research.
T. Strahl +10 more
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Mid-infrared III–V semiconductor lasers epitaxially grown on Si substrates
Light: Science & Applications, 2022 There is currently much activity toward the integration of mid-infrared semiconductor lasers on Si substrates for developing a variety of smart, compact, sensors based on Si-photonics integrated circuits.
Eric Tournié +8 more
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Photonics, 2022 In this work, we experimentally investigate the nonlinear dynamics of an interband cascade laser (ICL) under variable-aperture optical feedback implemented by a gold mirror combining with a ring-actuated iris diaphragm (RAID). By continuously varying the
Maorong Zhao +7 more
doaj +1 more source
Room temperature operation of single mode GaSb‐based DFB interband cascade lasers beyond 6.1 µm
Electronics Letters, 2023 Single‐mode distributed feedback GaSb‐based interband cascade lasers with record emission beyond 6.1 µm are presented. The results are based on an epitaxial design with reduced resonant intersubband absorption in the valence band and rebalanced ...
Josephine Nauschütz +5 more
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Interband Cascade Photonic Integrated Circuits on Native III-V Chip
Sensors, 2021 We describe how a midwave infrared photonic integrated circuit (PIC) that combines lasers, detectors, passive waveguides, and other optical elements may be constructed on the native GaSb substrate of an interband cascade laser (ICL) structure. The active
Jerry R. Meyer +6 more
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Real-time active-gas imaging of small gas leaks [PDF]
Journal of Sensors and Sensor Systems, 2023 To tackle global warming, the reduction of greenhouse gas leaks is of great public interest. While state-of-the-art optical gas imaging (OGI) cameras can visualize larger gas leaks with magnitudes of liters per minute in the case of methane, a much more ...
M. Bergau +6 more
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