Abstract
We experimentally demonstrate the simultaneous generation of tunable
multi-wavelength picosecond laser pulses using a self-seeding configuration that
consists of a gain-switched Fabry-Perot laser diode (FPLD) with an external cavity
formed by a tilted multimode fiber Bragg grating. Dual- and triple-wavelength pulses
are obtained and tuned in a flexible manner by changing the temperature of the FPLD.
The side mode suppression ratio larger than 25 dB is achieved at different dual- and
triple-wavelengths and the typical pulsewidth of the output pulses is ~70 ps. In the
experiment, the wavelength separation can be narrowed to 0.57 nm.
© 2011 Chinese Optics Letters
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