Measurement of the comb dynamics for feedback control of an etalon-based coupled optoelectronic oscillator.
The response of an optical frequency comb from an etalon-based coupled optoelectronic oscillator to changes in drive current, optoelectronic loop phase, modulator bias, and laser cavity length has been measured. It is found that controlling the phase of the optoelectronic loop is best suited for control of the pulse repetition rate, whereas controlling the laser cavity length is best for stabilization of the optical carrier frequency. Moreover, by measuring the instabilities of the carrier frequency at the fixed-point frequency of the optoelectronic phase, changes to the optoelectronic phase can be decoupled from changes to the laser cavity.
Quinlan
Franklyn
F
CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816-2700, USA. fquinlan@creol.ucf.edu
Williams
Charles
C
Ozharar
Sarper
S
Delfyett
Peter J
PJ