Motion Control:
Moving from one place to another, quickly and accurately, is the realm of motion control, and precise movements are key requirements of applications such as optical sectioning, critical dimension metrology, waveguide alignment and nearfield optical profiling. Moving a laser, fiber, optical assembly or other photonic system precisely remains challenging, but a handful of credible manufacturers can supply devices that offer positioning systems with submicron precision and excellent repeatability...
Photonics Spectra, September 1997