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Ridge waveguide type-I quantum-well GaSb-based diode lasers, with active regions utilizing InGaAsSb/AlInGaAsSb quantum wells, have been demonstrated to operate at temperatures as high as 40°C with 1 mW of power at wavelengths above 3.2 μm.
A free space optical (FSO) link utilizing midinfrared (mid-IR) interband cascade lasers has been demonstrated in the 3- to 5-??m atmospheric transmission window with data rates up to 70 Mb/s and bit-error rate (BER) less than 10-8. The performance of the mid-IR FSO link has been compared with the performance of a near-IR link under various fog conditions using an indoor communication testbed. These...
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