Erbium-doped fibre amplifiers (EDFAs) represent a cornerstone in modern optical communications, offering high gain amplification across the C- and L-bands. These devices leverage the unique energy ...

Scientists have successfully miniaturized a powerful erbium-based biber laser on a silicon-nitride photonic chip. Since typical erbium-based fiber lasers are large and difficult to scale down, the ...

Optical image of a hybrid integrated erbium-doped photonic integrated circuit-based laser, providing fiber-laser coherence and previously unachievable frequency tunability. Lasers have revolutionized ...