Title

Injection Locked Coupled Opto-Electronic Oscillator For Optical Frequency Comb Generation

Keywords

Coupled opto-electronic oscillators; Frequency comb; Harmonically mode-locked lasers; Injection locking; Pound-drever-hall technique

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. © 2011 SPIE.

Publication Date

6-6-2011

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

8054

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.886874

Socpus ID

79957829817 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/79957829817

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