Dynamics of all-optical clock recovery using two-section index- and gain-coupled DFB lasers

    Authors

    I. Kim; C. Kim; P. L. LiKamWa;G. F. Li

    Comments

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    Abbreviated Journal Title

    J. Lightwave Technol.

    Keywords

    carrier-suppressed return-to-zero (CSRZ); distributed feedback (DFB); laser; injection locking; laser dynamics; laser model; optical clock; recovery; DISTRIBUTED-FEEDBACK LASERS; SEMICONDUCTOR-LASER; INJECTION LOCKING; SELF-PULSATIONS; OSCILLATIONS; GENERATION; SIGNALS; RZ; Engineering, Electrical & Electronic; Optics; Telecommunications

    Abstract

    The dynamics of coherent clock recovery (CR) using self-pulsing two-section distributed feedback (TS-DFB) lasers have been investigated. Both simulation and experimental results indicate fast lockup and walk-off of the clock-recovery process on the order of nanoseconds. Phase stability of the recovered clock from a pseudorandom bit sequence (PRBS) signal can be achieved by limiting the detuning between the frequency of free-running self-pulsation and the input bit rate. The simulation results show that alloptical clock recovery using TS-DFB lasers can maintain a better than 5 % clock phase stability for large variations in power, bit rate, and optical carrier frequency of the input data and therefore is suitable for applications in optical packet switching.

    Journal Title

    Journal of Lightwave Technology

    Volume

    23

    Issue/Number

    4

    Publication Date

    1-1-2005

    Document Type

    Article

    Language

    English

    First Page

    1704

    Last Page

    1712

    WOS Identifier

    WOS:000228561300016

    ISSN

    0733-8724

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