Baltuška, A.

Fernandez, Alicia Jimenez

Grüner-Nielsen, Lars Erik

Israelsen, Stine Møller

Kautek, W.

Rottwitt, Karsten

Unterhuber, A.

Verhoef, A. J.

Zhu, L.

We present an Yb-fiber oscillator with an all-polarizationmaintaining cavity with a higher-order-mode fiber for dispersion compensation. The polarization maintaining higher order mode fiber introduces not only negative second order dispersion but also negative third order dispersion in the cavity, in contrast to dispersion compensation schemes used in previous demonstrations of all-polarization maintaining Yb-fiber oscillators. The performance of the saturable absorber mirror modelocked oscillator, that employs a free space scheme for coupling onto the saturable absorber mirror and output coupling, was investigated for different settings of the intracavity dispersion. When the cavity is operated with close to zero net dispersion, highly stable 0.5-nJ pulses externally compressed to sub-100-fs are generated. These are to our knowledge the shortest pulses generated from an all-polarization-maintaining Yb-fiber oscillator. The spectral phase of the output pulses is well behaved and can be compensated such that wing-free Fourier transform limited pulses can be obtained. Further reduction of the net intracavity third order dispersion will allow generating broader output spectra and consequently shorter pulses, without sacrificing pulse fidelity

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Sub-100 fs pulses from an all-polarization maintaining Yb-fiber oscillator with an anomalousdispersion higher-order-mode fiber - DTU Orbit (08/11/2017) Sub-100 fs pulses from an all-polarization maintaining Yb-fiber oscillator with an anomalous dispersion higher-order-modefiberWe present an Yb-fiber oscillator with an all-polarizationmaintaining cavity with a higher-order-mode fiber for dispersioncompensation. The polarization maintaining higher order mode fiber introduces not only negative second order dispersionbut also negative third order dispersion in the cavity, in contrast to dispersion compensation schemes used in previousdemonstrations of all-polarization maintaining Yb-fiber oscillators. The performance of the saturable absorber mirrormodelocked oscillator, that employs a free space scheme for coupling onto the saturable absorber mirror and outputcoupling, was investigated for different settings of the intracavity dispersion. When the cavity is operated with close to zeronet dispersion, highly stable 0.5-nJ pulses externally compressed to sub-100-fs are generated. These are to ourknowledge the shortest pulses generated from an all-polarization-maintaining Yb-fiber oscillator. The spectral phase of theoutput pulses is well behaved and can be compensated such that wing-free Fourier transform limited pulses can beobtained. Further reduction of the net intracavity third order dispersion will allow generating broader output spectra andconsequently shorter pulses, without sacrificing pulse fidelity. General informationState: PublishedOrganisations: Department of Photonics Engineering, Fiber Optics, Devices and Non-linear Effects, Vienna University ofTechnology, OFS Fitel Denmark ApS, Medical University of Vienna, University of ViennaAuthors: Verhoef, A. J. (Ekstern), Zhu, L. (Ekstern), Israelsen, S. M. (Intern), Grüner-Nielsen, L. E. (Ekstern), Unterhuber,A. (Ekstern), Kautek, W. (Ekstern), Rottwitt, K. (Intern), Baltuška, A. (Ekstern), Fernandez, A. J. (Ekstern)Number of pages: 2Publication date: 2015 Host publication informationTitle of host publication: The European Conference on Lasers and Electro-Optics 2015Publisher: Optical Society of AmericaISBN (Print): 978-1-4673-7475-0Main Research Area: Technical/natural sciencesConference: CLEO/Europe - EQEC 2015, Munich, Germany, 21/06/2015 - 21/06/2015Atomic and Molecular Physics, and Optics, Dispersion compensation, Electromagnetic dispersion, Fibers, Mirrors,Polarization, Saturable absorbers, Ytterbium, Intra-cavity dispersion, Mode-locked oscillators, Negative third-orderdispersion, Polarization maintaining, Saturable absorber mirrors, Second-order dispersion, Third order dispersion,Transform-limited pulse, Polarization-maintaining fiber Bibliographical noteFrom the session: Mode-locked Fibre Oscillators (CJ_2)Publication: Research - peer-review › Article in proceedings – Annual report year: 2015 

Sub-100 fs pulses from an all-polarization maintaining Yb-fiber oscillator with an anomalous dispersion higher-order-mode fiber

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Sub-100 fs pulses from an all-polarization maintaining Yb-fiber oscillator with an anomalous dispersion higher-order-mode fiber

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