A high-precision deformable mirror for spectral phase control
The 1 × 140 actuator Linear Array Deformable Mirror (DM) was developed for use in laser pulse shaping applications in which the DM is used to modify the phase of the spectral components of the laser pulse to achieve a desired temporal pulse characteristic. The device design is a based on BMC’s heritage deformable mirror technology that uses hysteresis-free electrostatic actuators to deform a continuous or segmented mirror facesheet. The prototype deformable mirror device has both a continuous and segmented mirror facesheet version as shown below, with an active area of 1.2 mm × 41.7 mm and 1.5 mm × 42 mm respectively. Each active mirror area is supported by an array of electrostatic actuators, spaced at a pitch of 300 μm.