Injection locked coupled opto-electronic oscillator for optical frequency comb generation

Charles Williams; Dimitrios Mandridis; Josue Davila-Rodriguez; Peter J. Delfyett

doi:10.1117/12.886874

5 May 2011 Injection locked coupled opto-electronic oscillator for optical frequency comb generation

Charles Williams, Dimitrios Mandridis, Josue Davila-Rodriguez, Peter J. Delfyett

Proceedings Volume 8054, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications VII; 80540C (2011) https://doi.org/10.1117/12.886874
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

A CW injection locked Coupled Opto-Electronic Oscillator (COEO) is presented with a 10.24 GHz spaced optical frequency comb output as well as a low noise RF output. A modified Pound-Drever-Hall scheme is employed to ensure long-term stability of the injection lock, feeding back into the cavity length to compensate for cavity resonance drifts relative to the injection seed frequency. Error signal comparison to an actively mode-locked injection locked laser is presented. High optical signal-to-noise ratio of ~35 dB is demonstrated with >20 comblines of useable bandwidth. The optical linewidth, in agreement with injection locking theory, reduces to that of the injection seed frequency, <5 kHz. Low amplitude and absolute phase noise are presented from the optical output of the laser system. The integrated pulse-to-pulse energy fluctuation was found to be reduced by up to a factor of two due to optical injection. Additional decreases were shown for varying injection powers.

Citation Download Citation

Charles Williams, Dimitrios Mandridis, Josue Davila-Rodriguez, and Peter J. Delfyett "Injection locked coupled opto-electronic oscillator for optical frequency comb generation", Proc. SPIE 8054, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications VII, 80540C (5 May 2011); https://doi.org/10.1117/12.886874

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