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QCL Features Higher Power, Wider Tuning Range

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Combining a tunable laser with an on-chip amplifier has enabled a versatile and powerful tool for spectroscopy and other applications. A team from Northwestern University demonstrated a single-mode quantum cascade laser (QCL) emitting at a wavelength near 4.8 μm by integrating an asymmetric sampled grating distributed feedback tunable laser with an optical amplifier. With this architecture, the laser demonstrated output power an order of magnitude greater than its predecessors, and the tuning range was enhanced by more than a factor of two. Schematic of a single-chip...Read full article

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    Published: January 2016
    BiophotonicsResearch & TechnologyTunable LasersAmericasNorthwesternIllinoisspectroscopyLasersManijeh RazeghiQCLSpectroscopy NewsOptics

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