1. The separation of colours by a prism is an example of normal dispersion. 2. In this case, the medium is said to have " normal dispersion ". 3. For visible light normal dispersion means that the refractive index is higher for blue light than for red. 4. Normal dispersion pattern of the M576 will put 13 of 20 pellets in a 1.5 meter circle at 40 meters. 5. Recently, multiwavelength dissipative soliton in an all normal dispersion fiber laser passively mode-locked with a SESAM has been generated. 6. This is called " normal dispersion ", in contrast to " anomalous dispersion ", where the refractive index increases with wavelength. 7. If " D " is less than zero, the medium is said to have " positive dispersion " or normal dispersion. 8. Extreme statistics have also been observed with pumping in the normal dispersion regime, wherein modulation instability occurs due the contribution of higher-order dispersion. 9. In 2009, the dark pulse fiber laser was successfully achieved in an all- normal dispersion erbium-doped �ber laser with a polarizer in cavity. 10. In 2009, the first dark soliton fiber laser has been successfully achieved in an all- normal dispersion erbium-doped �ber laser with a polarizer in cavity.