Active mode-locking via pump modulation in a Tm-doped fiber laser

We propose and experimentally realize a new class of actively mode-locking technique using pump modulation for rare-earth doped fiber lasers. A Tm-doped fiber laser at 2 μm is mode-locked using the proposed active mode-locking via pump modulation technique. Low-threshold continuous-wave mode-locking...

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Main Authors: Yu Wang, Sze Y. Set, Shinji Yamashita
Format: Article
Language:English
Published: AIP Publishing LLC 2016-10-01
Series:APL Photonics
Online Access:http://dx.doi.org/10.1063/1.4965249
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author Yu Wang
Sze Y. Set
Shinji Yamashita
author_facet Yu Wang
Sze Y. Set
Shinji Yamashita
author_sort Yu Wang
collection DOAJ
description We propose and experimentally realize a new class of actively mode-locking technique using pump modulation for rare-earth doped fiber lasers. A Tm-doped fiber laser at 2 μm is mode-locked using the proposed active mode-locking via pump modulation technique. Low-threshold continuous-wave mode-locking is achieved with a transform-limited pulse width of 4.4 ps, a spectral bandwidth of 0.9 nm, and a repetition rate of 12.9 MHz. Second-harmonic mode-locking is also demonstrated by simply driving the pump current at an appropriate frequency. More importantly, we believe that this technique can be applied to mode-lock other rare-earth doped fiber laser systems such as erbium- and ytterbium-doped fiber lasers.
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spelling doaj.art-fbeadd427c354b26bb99138443f78ab42022-12-21T19:08:43ZengAIP Publishing LLCAPL Photonics2378-09672016-10-0117071303071303-510.1063/1.4965249002607APPActive mode-locking via pump modulation in a Tm-doped fiber laserYu Wang0Sze Y. Set1Shinji Yamashita2Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku 154-8904, Tokyo, JapanResearch Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku 154-8904, Tokyo, JapanResearch Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku 154-8904, Tokyo, JapanWe propose and experimentally realize a new class of actively mode-locking technique using pump modulation for rare-earth doped fiber lasers. A Tm-doped fiber laser at 2 μm is mode-locked using the proposed active mode-locking via pump modulation technique. Low-threshold continuous-wave mode-locking is achieved with a transform-limited pulse width of 4.4 ps, a spectral bandwidth of 0.9 nm, and a repetition rate of 12.9 MHz. Second-harmonic mode-locking is also demonstrated by simply driving the pump current at an appropriate frequency. More importantly, we believe that this technique can be applied to mode-lock other rare-earth doped fiber laser systems such as erbium- and ytterbium-doped fiber lasers.http://dx.doi.org/10.1063/1.4965249
spellingShingle Yu Wang
Sze Y. Set
Shinji Yamashita
Active mode-locking via pump modulation in a Tm-doped fiber laser
APL Photonics
title Active mode-locking via pump modulation in a Tm-doped fiber laser
title_full Active mode-locking via pump modulation in a Tm-doped fiber laser
title_fullStr Active mode-locking via pump modulation in a Tm-doped fiber laser
title_full_unstemmed Active mode-locking via pump modulation in a Tm-doped fiber laser
title_short Active mode-locking via pump modulation in a Tm-doped fiber laser
title_sort active mode locking via pump modulation in a tm doped fiber laser
url http://dx.doi.org/10.1063/1.4965249
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