An Optical Frequency Shifter Using Magnetostatic Waves

The optical frequency shift in the collinear magnetostatic wave–optical guided mode interaction has been observed by directly measuring the change in optical wavelength due to magnetostatic waves in the 2–12 GHz range. The experimental shift is found to be in good agreement with the theoretically predicted value of 0.058 Å/GHz at λ0=1.319 μm.