Title :
Millimeter-Wave Generation in an Optoelectronic Oscillator Using an Ultrahigh Finesse Etalon as a Photonic Filter
Author :
Bagnell, Marcus ; Davila-Rodriguez, J. ; Delfyett, Peter J.
Author_Institution :
CREOL, Univ. of Central Florida, Orlando, FL, USA
Abstract :
A Fabry-Perot etalon with a finesse of 100 000 is used as a photonic filter in a single loop optoelectronic oscillator. The etalon provides narrow bandwidth microwave filtering at harmonics of its 1.5 GHz free spectral range for oscillation in the range of 6 to 60 GHz. Fiber delays as long as 2 km are added to the loop with no spurious modes visible above the noise floor. The environmental stability of the etalon makes it suitable as a secondary reference for feedback to the optical frequency which contributes to the reduction of phase noise and long term frequency drift.
Keywords :
Fabry-Perot interferometers; microwave filters; microwave oscillators; microwave photonics; millimetre wave filters; millimetre wave generation; millimetre wave oscillators; optical fibre filters; optical noise; phase noise; Fabry-Perot etalon; environmental stability; feedback; fiber delays; frequency 1.5 GHz; frequency 6 GHz to 60 GHz; long term frequency drift; millimeter-wave generation; narrow bandwidth microwave filtering; noise floor; optical frequency; phase noise reduction; photonic filter; single loop optoelectronic oscillator; ultrahigh finesse etalon; Microwave filters; Optical fiber amplifiers; Optical fiber filters; Phase noise; Fabry–Perot resonators; microwave oscillators; millimeter-wave generation; optoelectronic devices;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2013.2294944
