Ytterbium mode-locked fiber laser with single-wall NanoTubes as saturable absorber

We report on development of 1mkm master oscillator generating 6.6 ps, 250 pJ soliton-like pulses. The selfstarting CW mode-locking is realized in ytterbium all-fiber ring laser with PM architecture using specially designed saturable absorber based on single-wall carbon nanotubes. Keywords—mode-locking; SWNT; ytterbium; soliton I. INTRODUCTION Generation of high energy picosecond pulses at the wavelength of 1 mkm is a subject of intensive investigation due to its practical demands. Realization of such lasers in fiber format can be especially fruitful because of highly developed fiber technology. One of the most popular approaches is MOPA laser scheme with Master Oscillator based on passive mode locking (ML) with SESAM (1). Although huge progress has been made in improving quality and lifetime of SESAM, another saturable absorbers should be investigated. This paper briefly presents results of ytterbium picosecond pulse laser based on ML with Single-Wall NanoTubes (SWNT) as saturable absorbers.