Abstract: We demonstrate the fabrication of a high-quality fiber Bragg grating (FBG) in a large mode area passive double-clad fiber (DCF) using femtosecond laser multi-layer line-by-line inscription.
Abstract: In this paper, the feasibility of employing a fast intensity modulator and a chirped fibre Bragg grating to build a dispersion-tuned mode-locked swept laser (DTML-SS) for OCT at 850 nm is ...