Abstract
An effective method for multicoherence wavelength generation is experimentally demonstrated using an integrated twin-microdisk laser as a seeding source. Dual-wavelength lasing with variable wavelength spacing is achieved by adjusting injection currents independently. Using the integrated laser as a pump seed, we obtain multicoherence wavelength in a nonlinear optical fiber, which has a tunable frequency interval from 50 to 300GHz. Ten waves with optical signal to noise ratio from 28 to 10dB are produced at the frequency interval of 200GHz and a pulse width of 1.2ps. The high extinction ratio of the pulse trace indicates the high coherence in the mode-locked multiwavelength light source.
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