Profile: Kaiser Optical Systems, Inc. offers spectrometers, analyzers, and optical components for Raman spectroscopy. We provide source for Raman analyzers to holographic components, as well as telecommunication, astronomy, & ultra fast laser applications. Our high throughput holographic laser bandpass filters are used to spatially disperse laser emission according to wavelength. Our holographic notch filters provide up to six orders of magnitude of attenuation of the Rayleigh line along with sharp spectral cutoffs that allow bands as close as 100 cm-1 to be detected.