Abstract
A scheme of multi-wavelength pulse generator using optical frequency comb and arrayed
waveguide grating (AWG) is proposed and experimentally demonstrated. A flattop optical frequency
comb is shaped into multiple narrowband Gaussian spectra by using an AWG which contains a number of
Gaussian channels, and then multi-wavelength optical pulses are achieved. In the experiment, six
wavelength pulses with full width at half-maximum (FWHM) of 14.6 ps at 10 GHz are obtained, and two
wavelength-interleaved pulse trains at 20 GHz and four wavelength-interleaved pulse trains at 40 GHz
are demonstrated by using the multi-wavelength optical pulses. This scheme has flexibility because
the pulse width, the repetition rate, and time-interval can be readily controlled.
© 2012 Chinese Optics Letters
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