Article

Repetition-controllable gain-managed nonlinear fiber amplifier enables ultrashort, multiphoton imaging with reduced photodamage

2026-04-24

Abstract excerpt

1. We report a repetition-controllable gain-managed nonlinear fiber amplifier (GMNA) that delivers near-infrared 50-fs pulses with pulse energies up to 150 nJ and a widely tunable repetition rate from 1–20 MHz, while maintaining stable pulse quality across the full range. Using this source, we demonstrate label-free multiphoton imaging—including metabolic autofluorescence (2PF/3PF), second/third-harmonic generatio...

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Literature Corpus work: 3943ec89-9d0b-5353-b6ec-c30ca3333cb7
DOI: 10.64898/2026.04.22.720141

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