Noise Characterization of an Injection-Locked COEO With Long-Term Stabilization

    Authors

    C. Williams; J. Davila-Rodriguez; D. Mandridis;P. J. Delfyett

    Comments

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    Abbreviated Journal Title

    J. Lightwave Technol.

    Keywords

    Coupled opto-electronic oscillator (COEO); injection locking; Pound-Drever-Hall (PDH) stabilization; supermode noise; COUPLED OPTOELECTRONIC OSCILLATOR; FREQUENCY COMBS; SEMICONDUCTOR-LASERS; PHASE; MICROWAVE; Engineering, Electrical & Electronic; Optics; Telecommunications

    Abstract

    Extensive noise analysis is presented of a semi-conductor-based coupled opto-electronic oscillator using continuous-wave optical injection for the generation of an optical frequency comb with 10.24 GHz spacing. The suppression of unwanted optical axial mode groups arising from the harmonic nature of mode locking is achieved via gain competition. Amplitude noise measurements show a marked reduction in noise due to optical injection for multiple injection powers. Supermode noise spur suppression is shown to be greater than 15 dB in absolute phase noise measurements, taken using the frequency discriminator technique. Allan deviation measurements are also shown for both the free-running and injection-locked states.

    Journal Title

    Journal of Lightwave Technology

    Volume

    29

    Issue/Number

    19

    Publication Date

    1-1-2011

    Document Type

    Article

    Language

    English

    First Page

    2906

    Last Page

    2912

    WOS Identifier

    WOS:000294851900004

    ISSN

    0733-8724

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