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Updated: Jun 7, 2026
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
High-energy femtosecond fiber laser at 976 nm
J Lhermite1, G Machinet, C Lecaplain
1Centre Lasers Intenses et Applications, Université de Bordeaux-CNRS-CEA, UMR 5107,351 Cours de la Libération F-33405 Talence, France. lhermite@celia.u‑bordeaux1.fr
Abstract:
We report on a passively mode-locked fiber laser emitting around 976nm. The self-starting mode locking is achieved in an unidirectional ring cavity by means of nonlinear polarization evolution. Stable single-pulse operation is observed for 480mW of average output power. This all-normal dispersion laser generates naturally chirped pulses with 1ps duration. The repetition rate is 40.6MHz, resulting in 12nJ pulse energy. External compression using bulk grating shortens the pulse duration down to 286fs.
