Title :
Low-coherence interferometry using a self-mixing super-luminescent diode
Author :
Rovati, L. ; Docchio, F.
Author_Institution :
Dipt. di Elettronica per l´´Autom., Brescia Univ., Italy
Abstract :
A novel low-coherence interferometer (LCI) using a self-mixing superluminescent diode is described. The optical scheme proposed uses the photodiode on the back-face of a commercial super luminescent diode to detect the interference signal from a Fizeau interferometer. Interesting characteristics are low cost and small size, high stability and resolution. The proposed interferometer is expected to have several industrial as well as medical applications.
Keywords :
light coherence; light interferometers; optical feedback; optical resolving power; photodiodes; stability; superluminescent diodes; Fizeau interferometer; back-face; commercial super luminescent diode; high resolution; high stability; industrial applications; interference signal; light inteferometry; low cost; low-coherence interferometry; medical applications; optical scheme; photodiode; self-mixing super-luminescent diode; small size; Biomedical optical imaging; Costs; Interference; Medical signal detection; Optical interferometry; Photodiodes; Signal detection; Signal resolution; Stability; Superluminescent diodes;
Journal_Title :
Photonics Technology Letters, IEEE
