DFB diode seeded low repetition rate fiber laser system operating in burst mode

A distributed feedback (DFB) diode, gain switched to produce pulses from 60ps at high peak power of over 0.5W, is used in burst mode to seed a fiber amplifier chain. High seed power, spectral filtering between amplifier stages and pulsed pumping are used to mitigate amplified spontaneous emission (A...

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Published in:Optics and laser technology 2017-02, Vol.88, p.99-103
Main Authors: Šajn, M., Petelin, J., Agrež, V., Vidmar, M., Petkovšek, R.
Format: Article
Language:English
Subjects:
Amplification
Bursting
Diodes
Effects
Fiber laser
Filtration
Laser amplifiers
Mathematical models
Pumping
Receivers & amplifiers
Reduction
Repetition
Seeds
Spontaneous emission
Ytterbium doped
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cited_by cdi_FETCH-LOGICAL-c425t-92c5e3b2cfd3dca9aff8f004da1cebcd79578e08e8315a57eeb39deb3bed5d943
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container_end_page 103
container_issue
container_start_page 99
container_title Optics and laser technology
container_volume 88
creator Šajn, M.
Petelin, J.
Agrež, V.
Vidmar, M.
Petkovšek, R.
description A distributed feedback (DFB) diode, gain switched to produce pulses from 60ps at high peak power of over 0.5W, is used in burst mode to seed a fiber amplifier chain. High seed power, spectral filtering between amplifier stages and pulsed pumping are used to mitigate amplified spontaneous emission (ASE). The effect of pulse pumping synchronized with the seed on the ASE is explored for the power amplifier at low repetition. Different input and output energies at different burst repetition rates are examined and up to 85% reduction in ASE is achieved compared to continuous pumping. Finally, a numerical model is used to predict further reduction of ASE. •A DFB diode driven to produce pulses in 10s of ps with peak powers over 0.5W.•Preshaped bursts amplification at low repetition rate.•A theoretical and experimental study of the effect of pulsed pumping on the ASE.•ASE reduction using synchronous pulsed pumping up to 85%.
doi_str_mv 10.1016/j.optlastec.2016.09.006
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source ScienceDirect Journals
subjects Amplification
Bursting
Diodes
Effects
Fiber laser
Filtration
Laser amplifiers
Mathematical models
Pumping
Receivers & amplifiers
Reduction
Repetition
Seeds
Spontaneous emission
Ytterbium doped
title DFB diode seeded low repetition rate fiber laser system operating in burst mode
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