Open AccessSimultaneous all-optical individual channel clock extraction and wavelength conversion using an optically injected Fabry-Perot laser diode
Author(s) -
Lyu Yu-Xiang,
Shikun Sun,
Xing Yang
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.2467
Subject(s) - clock recovery , optics , laser diode , wavelength , laser , signal (programming language) , materials science , optoelectronics , wavelength division multiplexing , semiconductor laser theory , physics , clock signal , electronic circuit , computer science , quantum mechanics , programming language
We propose and demonstrate a novel technique that uses a FabryPerot laser diode FPLD to perform simultaneous alloptical individual channel clock extraction and wavelength conversion. The nonlinear dynamical period1 oscillation can occur when a semiconductor laser is optically injected. By utilizing the crossgain modulation effect and the period1 oscillation harmonic frequencylocked in an optically injected semiconductor laser, we can extract the wavelength conversional individual channel optical clock from the opticaltimedivisionmultiplexing OTDM signal. In a FPLD, we numerically simulate the extraction of 20 GHz optical clock at 1550 nm from the 2×20 Gb/s OTDM signal at 1555 nm, and experimentally obtain the -105 dBc/Hz phase noise frequency division clock of 1236 GHz to 618 GHz with simultaneous wavelength conversion from 155024 nm to 154591 nm. Moreover, we investigate the influence of the injection optical power level, wavelength detuning, the FPLD's bias current level and the longitudinal mode selection on the optical clock extraction. This method is potential to technologically apply in the alloptical demultiplexing and wavelength routing in the OTDM mixed wavelengthdivisionmultiplexing WDM communication system.