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Bragg Grating Reduces OPO Bandwidth by Factor of 20

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Breck Hitz

Because the wavelengths required for most spectroscopic, remote sensing and biophotonics measurements are rarely emitted by conventional lasers, nonlinear wavelength conversion is frequently employed in these applications. Stimulated Raman scattering (see “Raman Lasers Offer Power and Wavelength Versatility,” Photonics Spectra, July, page 52) and optical parametric oscillation are two techniques that have been developed to shift the wavelength of conventional lasers. Figure 1. From left to right, the components of the optical parametric oscillator (OPO) are the 1-in.-diameter dichroic...Read full article

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