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.
© 2008 Optical Society of America
Lasers and Laser Optics
Original Manuscript: April 15, 2008
Revised Manuscript: May 20, 2008
Manuscript Accepted: May 27, 2008
Published: June 20, 2008
Franklyn Quinlan, Charles Williams, Sarper Ozharar, and Peter J. Delfyett, "Measurement of the comb dynamics for feedback control of an etalon-based coupled optoelectronic oscillator," Opt. Lett. 33, 1422-1424 (2008)