Abstract
A 2.3 μm near-room temperature tunable diode laser was tested for applications in high-resolution laboratory spectroscopy. It was mounted using a simple adaptor in a spectrometer usually used with lead-salt diode lasers, and was found to be electrically and optically compatible with the system. Good output power (several milliwatts) was observed, and a tuning range of 4460–4150 cm −1 was achieved for laser temperatures of 210–310 K. Some spectra of N 2O and NH 3 were recorded in the 4300–4430 cm −1 region. However, the laser was not generally useful due to noisy and unstable output and high sensitivity to optical feedback.
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