Generation of Chirped Femtosecond Pulses near 977 nm Using a Mode-Locked All-Fiber Laser

Svetlana S. Aleshkina, Denis S. Lipatov, Vladimir V. Velmiskin, Valery Temyanko, Mikhail E. Likhachev

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A cladding-pumped all-fiber chirped femtosecond pulse Yb-doped mode-locked laser operating near 977 nm was demonstrated for the first time. Nonlinear polarization evolution was used as the mode-locking mechanism. The laser was self-starting and extremely stable (the stability of the repetition rate of 41.6 MHz was better than that of 15 Hz). Amplification near 977 nm was achieved using a specially designed cladding-pumped Yb-doped fiber. The main feature of the current laser design was its increased intracavity nonlinearity, which resulted in a strong self-phase modulation and significant widening of the generated pulse spectrum. This nonlinearity allowed us to generate pulses compressible down to a duration of 230 fs using an external diffraction grating compressor.

Original languageEnglish (US)
Article number9104686
Pages (from-to)811-814
Number of pages4
JournalIEEE Photonics Technology Letters
Volume32
Issue number13
DOIs
StatePublished - Jul 1 2020

Keywords

  • Fiber lasers
  • optical fibers
  • Ytterbium

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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