Sub‐30‐fs fibre‐coupled electro‐optic modulation comb at 1.5 μm with a 25‐GHz repetition rate
Yugo Kikkawa, Atsushi Ishizawa, Rai Kou, Xuejun Xu, Koki Yoshida, Tai Tsuchizawa, Takuma Aihara, Tadashi Nishikawa, Guanwei Cong, Kenichi Hitachi, Noritsugu Yamamoto, Koji Yamada, Katsuya Oguri
Abstract
Abstract The generation of a 24‐fs fibre‐coupled electro‐optic‐modulation (EO) comb at 1.5 μm with a 25‐GHz repetition rate, which is the shortest pulse, is demonstrated. The authors also generated a 2/3‐octave spanning supercontinuum spectrum using precise dispersion‐controlled silicon nitride waveguides. This method can open new horizons to generate a compact and robust carrier‐envelope‐offset‐locked EO comb.
Topics & Concepts
SupercontinuumFrequency combMaterials scienceModulation (music)OpticsOffset (computer science)OptoelectronicsOctave (electronics)PhysicsWavelengthComputer scienceLaserPhotonic-crystal fiberAcousticsProgramming languageAdvanced Fiber Laser TechnologiesOptical Network TechnologiesAdvanced Photonic Communication Systems