Abstract
A novel Fiber Bragg Grating (FBG) external cavity laser diode capable of providing multiple ITU wavelengths is presented. An air gap Fabry-Perot filter with transmission peaks on ITU wavelengths was inserted in the external cavity. While the FBG wavelength was tuned to a F-P transmission peak by the simple beam, the laser source generated an ITU wavelength. In our experiment 7 ITU wavelengths was acquired. As a versatile wavelength generating system, developed for both high precision wavelength calibration and stabilization of tunable diode lasers, our laser source already considerably improved the quality of our diode laser spectra and is promising for WDM communication systems.
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