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Updated: May 30, 2026

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
Published on: February 28, 2016
Passive mode locking of an in-band-pumped Ho:YLiF4 laser at 2.06 μm
Nicola Coluccelli1, Alexander Lagatsky, Alberto Di Lieto
1Dipartimento di Fisica–Politecnico di Milano and Istituto di Fotonica e Nanotecnologie–CNR, Piazza Leonardo da Vinci 32, 20133 Milano, Italy. nicola.coluccelli@polimi.it
Abstract:
We demonstrate the passive mode-locking operation of an in-band-pumped Ho:YLiF(4) laser at 2.06 μm using a semiconductor saturable absorber mirror based on InGaAsSb quantum wells. A transform-limited pulse train with minimum duration of 1.1 ps and average power of 0.58 W has been obtained at a repetition frequency of 122 MHz. A maximum output power of 1.7 W has been generated with a corresponding pulse duration of 1.9 ps.

