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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 13 — Jun. 20, 2011
  • pp: 12108–12118

Low-loss VIS/IR-XUV beam splitter for high-power applications

Ioachim Pupeza, Ernst E. Fill, and Ferenc Krausz  »View Author Affiliations

Optics Express, Vol. 19, Issue 13, pp. 12108-12118 (2011)

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We present a low-loss VIS/IR-XUV beam splitter, suitable for high-power operation. The spatial separation of the VIS/IR and XUV components of a beam is achieved by the wedged top layer of a dielectric multilayer structure, onto which the beam is impinging under Brewster’s angle (for VIS/IR). With a fused silica wedge with an angle of 0.5° we achieve a separation angle of 2.2° and an IR reflectivity of 0.9995. Typical XUV reflectivities amount to 0.1–0.2. The novel element is mechanically robust, exhibiting two major advantages over free-standing Brewster plates: (i) a significant improvement of heat conduction and (ii) easier handling, in particular for high-optical-quality fabrication. The beam splitter could be used as an output coupler for intracavity-generated XUV radiation, promising a boost of the power regime of current MHz-HHG experiments. It is also suited for single-pass experiments and as a beam combiner for pump-probe experiments.

© 2011 OSA

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
(340.7480) X-ray optics : X-rays, soft x-rays, extreme ultraviolet (EUV)

ToC Category:
X-ray Optics

Original Manuscript: April 29, 2011
Revised Manuscript: May 30, 2011
Manuscript Accepted: May 30, 2011
Published: June 7, 2011

Ioachim Pupeza, Ernst E. Fill, and Ferenc Krausz, "Low-loss VIS/IR-XUV beam splitter for high-power applications," Opt. Express 19, 12108-12118 (2011)

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  2. P. Jaegle, Coherent Sources of XUV Radiation (Springer, 2006).
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  10. J. Kaster, I. Pupeza, T. Eidam, C. Jocher, E. Fill, J. Limpert, R. Holzwarth, B. Bernhardt, T. Udem, T. W. Hänsch, A. Tünnermann, and F. Krausz, “Towards MW average powers in ultrafast high-repetition-rate enhancement cavities,” High Intensity Lasers and High Field Phenomena (HILAS) Conference, paper HFB4 (2011).
  11. T. Eidam, S. Hanf, E. Seise, T. Andersen, V. T. Gabler, C. Wirth, T. Schreiber, J. Limpert, and A. Tünnermann, “Femtosecond fiber CPA system emitting 830 W average output power,” Opt. Lett. 35, 94–96 (2010). [CrossRef] [PubMed]
  12. P. Rußbüldt, T. Mans, J. Weitenberg, H. D. Hoffmann, and R. Poprawe, “Compact diode-pumped 1.1 kW Yb:YAG Innoslab femtosecond amplifier,” Opt. Lett. 35, 4169–4171 (2010). [CrossRef]
  13. I. Pupeza, X. Gu, E. Fill, T. Eidam, J. Limpert, A. Tünnermann, F. Krausz, and Th. Udem, “Highly sensitive dispersion measurement of a high-power passive optical resonator using spatial-spectral interferometry,” Opt. Express 18, 26784–26195 (2010). [CrossRef]
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  17. K. D. Moll, R. J. Jones, and J. Ye, “Output coupling methods for cavity-based high-harmonic generation,” Opt. Express 14, 8189–8197 (2006). [CrossRef] [PubMed]
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  19. J. Weitenberg, P. Rußbüldt, T. Eidam, and I. Pupeza, “Transverse mode tailoring in a high-finesse femtosecond enhancement cavity,” Opt. Express 19, 9551–9561 (2011). [CrossRef] [PubMed]
  20. I. Pupeza, J. Weitenberg, P. Rußbüldt, T. Eidam, J. Limpert, E. Fill, Th. Udem, H.-D. Hoffmann, R. Poprawe, A. Tünnermann, and F. Krausz, “Tailored transverse modes in high-finesse femtosecond enhancement cavities,” CLEO 2011, Baltimore, paper QMJ7 (2011).
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  23. G. Steinmeyer, “Brewster-angled chirped mirrors for high-fidelity dispersion compensation and bandwidths exceeding one optical octave,” Opt. Express 11, 2385–2396 (2003). [CrossRef] [PubMed]
  24. T. Eidam, F. Röser, O. Schmidt, J. Limpert, and A. Tünnermann, “57 W, 27 fs pulses from a fiber laser system using nonlinear compression,” Appl. Phys. B 92, 9–12 (2008). [CrossRef]

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