VISIBILITY ENHANCED INTERFEROMETER, CAPABLE OF MAINTAINING A REFLECTED LIGHT SIGNAL TO BE THE SAME OR SIMILAR WITH A REFERENCE LIGHT SIGNAL BECAUSE THE REFLECTED LIGHT SIGNAL IS AMPLIFIED TO AN AUXILIARY LIGHT SOURCE APPLIED AN INJECTION LOCKING METHOD WITHOUT A PHASE INFORMATION CHANGE

摘要

PURPOSE: A visibility enhanced interferometer is provided to improve the visibility because a reflected light signal is amplified to an auxiliary light source applied an injection locking method without a phase information change and becomes similar to a reference light signal.;CONSTITUTION: A visibility enhanced interferometer comprises a main optical source unit(20), a light splitting unit(30), a reference surface reflection unit(40), a measuring surface reflection unit(50), and an optical detecting unit(60). The main optical source unit projects short wavelength light. The light splitting unit divides a light signal into two. The reference and measuring surface reflection units respectively reflect the light signals divided by the light splitting unit to each measuring surface of measuring objects. The light detecting unit observes the interference by gathering the reflected lights from the reference and measuring surface reflection units. The auxiliary light source unit amplifies weak reflected light so that the visibility is uniformly maintained.;COPYRIGHT KIPO 2012