Wavelength modulation spectroscopy with a widely tunable InP-based 2.3 microm vertical-cavity surface-emitting laser |
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| Authors: | Hangauer Andreas Chen Jia Strzoda Rainer Ortsiefer Markus Amann Markus-Christian |
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| Affiliation: | Siemens Corporate Technology, Power and Sensor Systems, Munich, Germany. andreas.hangauer@wsi.tum.de |
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| Abstract: | We report on the successful application of recently developed 2.3 microm InP-based vertical-cavity surface-emitting lasers with a buried tunnel junction in a wavelength modulation spectroscopy measurement for carbon monoxide (CO) detection. The electrically pumped devices operate at room temperature under cw operation with stable single-mode emission and should allow for parts in 10(6) (ppm) level resolution measurement of CO with a standard optical setup. |
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