Room temperature spasing of surface plasmon polaritons at 1.46 μm wavelength has been demonstrated by sandwiching a gold-film plasmonic waveguide between optically pumped InGaAs quantum-well gain media. The spaser exhibits gain narrowing, the expected transverse-magnetic polarization, and mirror feedback provided by cleaved facets in a 1-mm long cavity… (More)
The interband cascade laser differs from any other class of semiconductor laser, conventional or cascaded, in that most of the carriers producing population inversion are generated internally, at semimetallic interfaces within each stage of the active region. Here we present simulations demonstrating that all previous interband cascade laser performance has… (More)
The in-plane and cross-plane thermal conductivities of the cladding layers and active quantum wells of interband cascade lasers and type-II superlattice infrared detector are measured by the 2-wire 3ω method. The layers investigated include InAs/AlSb superlattice cladding layers, InAs/GaInSb/InAs/AlSb W-active quantum wells, an InAs/GaSb su-perlattice… (More)
Silicon integration of mid-infrared (MIR) photonic devices promises to enable low-cost, compact sensing and detection capabilities that are compatible with existing silicon photonic and silicon electronic technologies. Heterogeneous integration by bonding III-V wafers to silicon waveguides has been employed previously to build integrated diode lasers for… (More)
A volume Bragg grating recorded in photo-thermo-refractive glass was used to spectrally lock the emission from an 18-μm-wide interband cascade laser ridge to a wavelength of 3.12 μm. The spectral width of emission into the resonant mode is narrowed by more than 300 times, and the thermal wavelength shift is reduced by 60 times. While the power loss penalty… (More)
Articles you may be interested in Type-I interband cascade lasers near 3.2μm Thermally activated leakage current in high-performance short-wavelength quantum cascade lasers Microprobe photoluminescence assessment of the wall-plug efficiency in interband cascade lasers Influence of InAs, AlAs δ layers on the optical, electronic, and thermal characteristics… (More)
Methods for growing periodically alternating polarities of GaN on N-polar and Ga-polar GaN substrates have been developed. The resulting periodically oriented samples can be extended to thick growth, allowing their use in non-linear optics.
We report a 7-stage narrow-ridge interband-cascade laser emitting at λ ≈ 3.5 μm that produces up to 592 mW of cw power, with a wallplug efficiency of 10.1% and M<sup>2</sup> = 3.7 at T = 25 °C.
We report Fabry-Perot interband cascade lasers coupled to rectangular ring resonators that produce up to 5 mW of cw power in a single spectral mode at 3°C. The tuning range at 3–28°C exceeds 8 nm.
We performed spectroscopy of methane using a broadly tunable external cavity interband cascade laser (EC-ICL). A miniaturized EC-ICL design for field applications, with improved anti-reflection and high-reflection coatings and new EC tuning mechanism, is presented.