Title :
Three-mirror etalons as bandpass filters for modulated optical signals
Author :
MacFarlane, D.L. ; Dowling, E.M.
Author_Institution :
Erik Jonsson Sch. of Eng. & Comput. Sci., Texas Univ., Dallas, TX, USA
Abstract :
A three-mirror Fabry-Perot etalon may be used to discriminate an optical signal modulated at a particular resonant frequency from those modulated at higher or lower frequencies. This bandpass behavior is well predicted theoretically from the structure´s transfer function and physically arises from the exchange of energy between two potential wells in an action analogous to an inductance-capacitance LC circuit. This resonance behavior is tested experimentally using a visible diode laser-based tunable repetition rate optical spectroscopy apparatus.<>
Keywords :
light interferometers; mirrors; optical filters; optical modulation; optical systems; transfer functions; transforms; Fabry-Perot etalon; bandpass filters; energy exchange; inductance-capacitance LC circuit; modulated optical signals; optical signal; potential wells; resonance behavior; resonant frequency; three-mirror etalons; transfer function; visible diode laser-based tunable repetition rate optical spectroscopy apparatus; Band pass filters; Circuits; Fabry-Perot; Frequency modulation; Optical filters; Optical modulation; Potential well; Resonance; Resonant frequency; Transfer functions;
Journal_Title :
Photonics Technology Letters, IEEE
