High average power, strictly all-fiber supercontinuum source with good beam quality

Abstract

A 1.05 μm picosecond pulsed fiber master oscillator power amplifier system delivering an average power of over 100 W was used to pump a 5 m long commercially available photonic crystal fiber and a 49.8 W supercontinuum spanning from around 500 nm to above 1700 nm was generated. Strictly single mode operation of the all-fiber supercontinuum source across the whole spectral range was verified through the quantitative measurement of the beam quality.

High Repetition-Rate Narrow Bandwidth SESAM Mode-Locked Yb-Doped Fiber Lasers

“…The results indicate that SESAM mode-locked picosecond Yb-doped fiber laser is promising to realize very high repetition rate up to GHz and has the potential to boost the power to hundreds of Watts with a narrow bandwidth at 1064 nm. This kind of laser sources can be used for high power broadband supercontinuum generation [4].…”

“…H IGH repetition rate pulsed fiber lasers are very attractive for many applications including optical frequency combs, laser ranging and broadband supercontinuum generation [1]- [4]. Normally, there are several approaches to obtain high repetition rate fiber laser sources, mainly including actively mode-locked fiber lasers [5]- [6] and passively harmonic mode-locked fiber lasers [7]- [8].…”

Design and analysis of seven-core photonic crystal fiber for high-power visible supercontinuum generation

“…[1][2][3][4] However, the development of a high-power SC based on single-core PCF is restricted by its small mode field area because a large core size always leads to a dispersion mismatch with the 1-μm laser which is the most commonly used pump source for high-power all-fiber integrated SC generation. 5,6 The power scaling ability and the extension of the spectrum is an apparent contradiction for single-core PCFs. Multicore PCFs offer a possibility of scaling up the mode field area to a large extent without a remarkable change in dispersion properties which show great potential in highpower supercontiuum generation.…”

Design of Seven-core Photonic Crystal Fiber with Flat In-phase Mode for Yb: Fiber Laser Pumping

“…The ytterbium fiber (Yb:fiber) laser system has the merits of high efficiency, reliability and compatibility with PCF, rendering them almost ideal candidates for compact sources of SC radiation [5][6][7][8]. H. Chen [7] reported a 35 W high power all fiber SC source based on PCF with picosecond laser, and X. Hu [8] reported a 50W strictly single mode all-fiber SC source spanning from 500 nm to over 1700 nm by using a 5-m-long commercially PCF. However, it is particularly challenging to further improve the SC power that limited by the low coupling efficiency from the large mode area Yb:fiber into the highly nonlinear PCF.…”