Use the Boston Micromachines Broadband Optical Modulator as a DC power attenuator and high-speed modulator.
The all-reflective design incorporates the gold-coated MEMS device that is polarization independent and introduces minimal (<100 fs2) dispersion as a central component. This unidirectional device accepts a collimated, 1 to 2 mm (1/e2) diameter input beam with <5 W optical power and is available with either standard (>250:1) or high (>2500:1) contrast ratios.
The High Speed Modulator is available now through the Thorlabs website. Click below to find out more.