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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 7 — Mar. 29, 2010
  • pp: 6994–7001

Single-sweep laser writing of 3D-waveguide devices

Matthias Pospiech, Moritz Emons, Benjamin Väckenstedt, Guido Palmer, and Uwe Morgner  »View Author Affiliations

Optics Express, Vol. 18, Issue 7, pp. 6994-7001 (2010)

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We report on a method to create multiple waveguides simultaneously in 3D in fused silica. A combination of adaptive beam shaping with femtosecond laser writing is used to write two waveguides with changing separation and depth. The method is based on a programmable phase modulator and a dynamic variation of the phase-pattern during the writing process. The depth difference can be dynamically varied by changing a chirp parameter of the applied phase grating pattern. It can be employed in various photonic devices such as couplers, splitters and interferometers. Here we demonstrate splitters with both outputs ending in different depth.

© 2010 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(140.3300) Lasers and laser optics : Laser beam shaping
(230.7370) Optical devices : Waveguides
(250.5300) Optoelectronics : Photonic integrated circuits
(350.3390) Other areas of optics : Laser materials processing
(070.6120) Fourier optics and signal processing : Spatial light modulators

ToC Category:
Optical Devices

Original Manuscript: February 11, 2010
Revised Manuscript: March 12, 2010
Manuscript Accepted: March 18, 2010
Published: March 19, 2010

Matthias Pospiech, Moritz Emons, Benjamin Väckenstedt, Guido Palmer, and Uwe Morgner, "Single-sweep laser writing of 3D-waveguide devices," Opt. Express 18, 6994-7001 (2010)

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