Abstract
A low noise optically tunable optoelectronic oscillator (OEO) scheme which
uses a 1000 finesse Fabry–Perot etalon as the mode selector is
demonstrated. The dependency of input optical frequency on RF frequency is
theoretically analyzed and experimentally shown. The etalon-based OEO is
compared with the standard OEO with RF filter and the results show higher RF
frequency stability and lower phase noise. A single optical side band
modulation technique is also used to improve the spectral purity and the
results are compared with the double side band modulation technique. Low
noise operation of an optically tunable OEO is achieved by using optical
single side band modulation.
© 2010 USGov
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