Improved retrieval of complex supercontinuum pulses from XFROG traces using a ptychographic algorithm

Heidt, Alexander; Spangenberg, Dirk-Mathys; Brügmann, Michael Heinrich; Rohwer, Erich G.; Feurer, Thomas (2016). Improved retrieval of complex supercontinuum pulses from XFROG traces using a ptychographic algorithm. Optics letters, 41(21), pp. 4903-4906. Optical Society of America 10.1364/OL.41.004903

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We demonstrate that time-domain ptychography, a recently introduced iterative ultrafast pulse retrieval algorithm, has properties well suited for the reconstruction of complex light pulses with large time-bandwidth products from a cross-correlation frequency-resolved optical gating (XFROG) measurement. It achieves temporal resolution on the scale of a single optical cycle using long probe pulses and low sampling rates. In comparison to existing algorithms, ptychography minimizes the data to be recorded and processed, and significantly reduces the computational time of the reconstruction. Experimentally, we measure the temporal waveform of an octave-spanning, 3.5 ps long, supercontinuum pulse generated in photonic crystal fiber, resolving features as short as 5.7 fs with sub-fs resolution and 30 dB dynamic range using 100 fs probe pulses and similarly large delay steps.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Applied Physics
08 Faculty of Science > Institute of Applied Physics > Lasers

UniBE Contributor:

Heidt, Alexander; Brügmann, Michael Heinrich and Feurer, Thomas

Subjects:

600 Technology > 620 Engineering
500 Science
500 Science > 530 Physics

ISSN:

0146-9592

Publisher:

Optical Society of America

Language:

English

Submitter:

Simone Corry

Date Deposited:

12 Jul 2017 14:21

Last Modified:

12 Jul 2017 14:21

Publisher DOI:

10.1364/OL.41.004903

BORIS DOI:

10.7892/boris.96976

URI:

https://boris.unibe.ch/id/eprint/96976

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