Seminarium Optyczne

"We present an alignment-free, optofluidic dye laser based on an anti-resonant hollow core fiber. Its compact all-fiber design enables direct integration of the optofluidic laser with standard fiber components. As a proof-of-concept we show a custom developed antiresonant fiber filled with Rhodamine 6G, serving as an organic activemedium. The laser exhibits tunable emission with a peak wavelength ranging from 569 to 595 nm (visibleyellow to orange), depending on dye concentrations. Developed optofluidic platform operates with microliter-scale dye volumes in a compact, sealed configuration and interfaces directly with standard fiber componentswith FC/PC connectors. The modular, all-fiber and mechanically robust architecture enables alignment-free,turnkey operation and straightforward integration with standard optical fiber components.Presented optofluidic fiber dye laser is a matching solution to existing and widely used fiber lasers based onrare-earth doped active fibers, since the existing fiber lasers offer wavelength emission only in a limited rangerelated to bandgap properties of existing rare earth elements, whereas organic dyes covers full visible spectrumwithout any gaps and offers wide wavelength tuning. Moreover, the proposed laser design advances greenphotonics by enabling the replacement of rare-earth elements with organic dyes as active medium."