Broadband supercontinuum generation with femtosecond pulse width in erbium-doped fiber laser (EDFL)

Abstract

We demonstrate two flat plateaus and the low-noise spectrum of supercontinuum generation (SCG) in a highly nonlinear fiber (HNLF), injected by an amplified picosecond pulse seed of a carbon nanotube-based passively mode locked erbium-doped fiber laser. A broad spectrum of width approximately 1090 nm spanning the range 1130-2220 nm is obtained and the pulse width is compressed to the shorter duration of 70 fs. Variations of the injected peak power up to 33.78 kW into the HNLF are compared and the broad spectrum SCG profiles slightly expand for each of the injected peak powers. This straightforward configuration of SCG offers low output power and ultra-narrow femtosecond pulse width. The results facilitate the development of all fiber time-domain spectroscopy systems based on the photoconductive antenna technique.

Characterization of supercontinuum process pumped by amplified dissipative solitons

“…In silica glass fibers the spectral broadening is limited by strong material absorption in the mid-infrared region; however. SC generation with long-wavelength edge of ∼2.6 μm has been demonstrated [14][15][16][17][18][19], this band is interesting for LIDAR systems, optical coherence tomography or chemical sensing and microscopy [4,20].…”

Optimization of a supercontinuum source based on tapered ordinary fibers

“…The dynamics of supercontinuum generation (SCG) has been extensively investigated both theoretically and experimentally in the last two decades [4][5][6][7][8]. Extreme spectral broadening can be achieved using CW [9], ns [10], ps [11], or fs [12,13] laser sources coupled to highly nonlinear waveguides. Prevalent SCG waveguides are silica-based, generating spectra spanning from around 400 nm to 2000 nm [14].…”

Layered structured binary alkaline metal phosphide of KP15 as saturable absorbers for ultrashort pulsed laser generation

“…In recent years, all-fiber 980 nm ultrashort pulse lasers have attracted more attention [1][2][3][4][5][6][7][8][9] for a variety of applications. For example, it can be used as the pump source for generating a 490 nm blue laser in ocean communication [10,11], for generating high efficiency ultrafast 1030 nm [12][13][14] and 1550 nm lasers [15][16][17], and for supercontinuum lasers [18][19][20] with the spectrum covering the visible to the mid-infrared region. An Yb 3+ -doped fiber laser passively mode-locked by using saturable absorbers (SAs) was considered as the most effective way to generate an all-fiber 980 nm ultrashort pulse laser.…”