Figure 8
From: Discovery of Several New Families of Saturable Absorbers for Ultrashort Pulsed Laser Systems
Schematic of the cavity used in the experiment. LD: Laser diode; EDFA: Erbium doped fibre amplifier; WDM: Wavelength division multiplexer; TDF: Thulium doped fibre; ISO: Isolator; PC: Polarization controller; SA: Saturable absorber OC: Optical coupler. Twenty percent of the power was taken out from the cavity for the characterisation of the laser (Image created with MS PowerPoint).
