Submicron free space optical interferometer

We propose a novel submicron optical interferometer for free space applications. A beam is split into two narrow beams by wavefront division. After going through different phase shift, the two beams merge by themselves due to diffraction effect. Because of the self-mixing effect, lens and other disc...

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Bibliographische Detailangaben
Hauptverfasser:	Chian Chiu Li, Choy, O., Ho, H.P.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Biomedical optical imaging Finite difference methods Integrated optics Interference Lenses Optical diffraction Optical interferometry Optical sensors Phase shifting interferometry Rayleigh interferometer self-mixing Time domain analysis Young's experiment
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Beschreibung
Zusammenfassung:	We propose a novel submicron optical interferometer for free space applications. A beam is split into two narrow beams by wavefront division. After going through different phase shift, the two beams merge by themselves due to diffraction effect. Because of the self-mixing effect, lens and other discrete components are no longer needed, which enables a simple and ultra-compact structure and a manufacturing process compatible with the semiconductor technology. We use finite-difference time-domain (FDTD) simulations to demonstrate principles of the interferometer and make estimate of the signal-to-noise ratio.
DOI:	10.1109/EDSSC.2008.4760726