Optical Delay Line Controller (C/C++)
Function Description
Optical Delay Line (ODL) is an electrically controlled, reflector-style, highspeed, variable device consisting of an input fiber collimator and an output fiber coupler. The optics are mounted and aligned to position a gap between collimators. The collimator projects light into the free space and the coupler collects it into the output fiber. The width of the gap between the components determines the delay time through the device. In the device, the distance the light travels in the free space is precisely controlled by reflecting the light off a moveable reflector.
The ODL is equipped with a microprocessor and servo motor, with encoders to monitor the motion. The microprocessor enables remote communication through an electrical device or personal computer (PC) and the servo motor provides resolution of ≤1 μm.