Variable Ultrafast Pulse Compressors provide an easy-to-use solution for compensating group delay dispersion (GDD) in positively chirped or unchirped ultrafast laser pulses. Featuring high reflectivity coatings designed to cover most common ultrafast laser lines including UV, Ti:Sapphire, Yb:doped Fiber Lasers, and Mid-IR (2µm) Fiber Lasers, these compressors serve as a drop-in solution for variable dispersion compensation without deviation of the optical path. These compressor modules may be used in series with other Variable Ultrafast Pulse Compressors or Stretchers to achieve greater dispersion control. Variable Ultrafast Pulse Compressors are ideal for dispersion compensation and pulse recompression in applications such as multi-photon microscopy and ultrafast micro-machining. These compressors can be used with Variable Ultrafast Pulse Stretchers with similar wavelength coverage for chirped-pulsed amplifier systems.