Megawatt Peak-Power Femtosecond Ultralong Ring Fibre Laser with InN SESAM

As the demand for ultrafast radiation sources rises in a variety of fields, mode-locked fibre lasers could offer easy-to-implement, low-cost, compact solutions if their usual power limitations in the femtosecond regime were to be overcome. Recently we showed [1] that peak powers in excess of 600 kW...

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Published in2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) p. 1
Main Authors Gallazzi, Francesca, Jimenez-Rodriguez, Marco, Monroy, Eva, Corredera, Pedro, Gonzalez-Herraez, Miguel, Naranjo, Fernando B., Castanon, Juan Diego Ania
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2019
Subjects
Cavity resonators
Fiber lasers
Laser mode locking
Optical fibers
Power lasers
Ultrafast optics
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Summary:As the demand for ultrafast radiation sources rises in a variety of fields, mode-locked fibre lasers could offer easy-to-implement, low-cost, compact solutions if their usual power limitations in the femtosecond regime were to be overcome. Recently we showed [1] that peak powers in excess of 600 kW were achievable using a femtosecond mode-locked ring fibre laser operating in the telecom C-band. The keystone behind this breakthrough was a novel polarization-insensitive InN-based semiconductor saturable absorber mirror (SESAM), tolerant to extremely high fluences (>1 TW/cm 2 ) [2]. In this paper we explore the limits of InN-SESAM-based ring lasers in terms of cavity length and achievable output power, demonstrating the possibility to attain output peak powers in excess of 1 MW, without the need for an external pulse amplification stage.
DOI:10.1109/CLEOE-EQEC.2019.8871795