Read me file for Dataset DOI: 10.5258/SOTON/403975


University of Southampton – Optoelectronics Research Centre - DR. Di Lin – Di.Lin@soton.ac.uk

Title: Radially- and azimuthally- polarized nanosecond Yb-doped fiber MOPA system incorporating temporal shaping

Authors: D. Lin,* N. Baktash, M. Berendt, M. Beresna, P. G. Kazansky, W. A. Clarkson, S. U. Alam, D. J. Richardson

Related paper:
Lin, Di, Baktash, Neda and Berendt, Martin et al.  (2017)  
Radially- and azimuthally- polarized nanosecond Yb-doped MOPA system incoporating temporal shaping. 
Optics Letters (doi:10.1364/OL.99.099999)


Description:
The excel file contains all experimental data used for the paper, and the Zip file contains all figures listed in the paper.

Figure 1: Schematic of the experimental setup for amplifying cylindrical vector beams usingan Yb-doped fiber MOPA system and 
the output beamdiagnostics.ISO -optical isolator, WDM -wavelength division multiplexer,AOM-acoustic optical modulator,PSC -pump 
and signal combiner, CIR -circulator, CCD -charged coupled device, BPF-band pass filter, NPBS -non-polarization beam splitter.

Figure 2: Pulse energy and average outputpower as a functionof the launched pump power

Figure 3: Normalized pulse shapesafter the SLD(dashed lines) and the correspondingoutput peak powers(solid lines) for two different 2-step pulses.

Figure 4: Spectraofthe 14ns/80ns two-step pulsemeasured after the FBG (black), 3rdstage pre-amplifier (blue) and at the output of the MOPA with a pulse energy of ~860µJ.(resolution =0.02nm)

Figure 5: Experimentally observed intensity distributions of the original output beam (top row), the radially-polarized output beam (second row), and the azimuthally-polarized output beam (bottom row) at the maximum pulse energy of ~860µJ. (a), (f) and (k) show total intensity profiles. (b)-(e), (g)-(j), and (l)-(o) show beam profiles after passing through a rotated linear polarizer. The white arrows indicate the transmission axis of the polarizer.

Figure 6: Theoretical beam profiles for TM01, TE01, HE21eand HE21omodesafter the S-waveplate without (a) and with(b) the linear polarizer for orthogonal sand ppolarization directions. The corresponding measured profiles on the right confirm high radial polarization purity.

Re-use Licence:
The data is licenced for reuse under the Creative Commons Attribution licence, v4.0



If you would like to know more information about this paper, please feel free to contact Dr Lin through email above.