Ngr. Broderick et al., POWER SCALING IN PASSIVELY MODE-LOCKED LARGE-MODE AREA FIBER LASERS, IEEE photonics technology letters, 10(12), 1998, pp. 1718-1720
We report on a novel approach toward generating high peak powers in pa
ssively mode-locked fiber lasers. By appropriate design the fiber's mo
de area is increased by a factor of similar to 30 compared to standard
fiber. This increased area effectively decreases the nonlinearity thu
s, increasing the power necessary to form stable soliton-like pulses.