Wavelength modulation waveforms were studied in tunable diode laser photoacoustic spectroscopy by way of simulations and experiments. The modulation waveforms were sinusoidal, triangular, shaped, and quasi-square waves. The quasi-square waveform gave the largest signal-to-noise ratio.
© 2009 The Optical Society
J. Saarela, J. Toivonen, A. Manninen, T. Sorvajärvi, and R. Hernberg, "Wavelength Modulation in Tunable Diode Laser Photoacoustic Spectroscopy," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper JTuD82.
References are not available for this paper.