Abstract

Existing schemes to generate multiwavelength optical pulses include the mode-locking of fiber ring laser using a birefringent cavity,¹ mode-locking of semiconductor laser in two external cavities,² generation of supercontinuum in optical fibers,³ and active mode-locking of a multichannel grating cavity laser⁴ We present here a relatively simple approach of generating dual-wavelength picosecond optical pulses by self-injection seeding of a noncoated Fabry-Perot (F-P) laser diode.⁵ The output wavelengths and their spacing are timed by adjusting the electrical frequency and the length of the dispersion-shifted fiber (DSF).

© 1996 Optical Society of America