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Proceedings Article

Laser-based microalignment for fabrication of highly precise 2D fiber collimator arrays

[+] Author Affiliations
Markus Stark, Gerd Esser, Andre Lamott

Bayerisches Laserzentrum gGmbH (Germany)

Manfred Geiger

Friedrich-Alexander-Univ. Erlangen-Nuernberg (Germany)

Proc. SPIE 5339, Photon Processing in Microelectronics and Photonics III, 144 (July 15, 2004); doi:10.1117/12.529072
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From Conference Volume 5339

  • Photon Processing in Microelectronics and Photonics III
  • Peter R. Herman; Jim Fieret; Alberto Pique; Tatsuo Okada; Friedrich G. Bachmann; Willem Hoving; Kunihiko Washio; Xianfan Xu; Jan J. Dubowski; David B. Geohegan; Frank Traeger
  • San Jose, Ca | January 25, 2004

abstract

In optical communication there are systems requiring a parallel transmission of several high bit rate data channels based on singlemode fibers. Especially for a free space transmission within such a system a precise collimation of the parallel channels is necessary to guarantee a low loss system. For this purpose compact two dimensional fiber collimator arrays can be used. A main quality characteristic for this arrays is the pointing accuracy, the angular deviation of the collimated beams to a theoretical optical axis. The angular deviation is caused by a lateral offset of the fiber axes to the axes of the corresponding micro lens. To minimize this offset we developed and analyzed an actor geometry for a fiber array which allows a laser based micro alignment of the fibers to the micro lenses. An alignment accuracy within submicrons can be realized which guarantees a pointing accuracy below 0.01 degrees. In this paper we demonstrate some important results of the FEM based analyzes to show the influence of different laser parameters for optimizing the alignment procedure and to minimize alignment time. Experimental results confirm the actor behavior calculated in the FE analyzes and demonstrate the qualification of laser based micro alignment of fibers for the assembly of highly precise two dimensional fiber collimator arrays.

© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Markus Stark ; Gerd Esser ; Andre Lamott and Manfred Geiger
"Laser-based microalignment for fabrication of highly precise 2D fiber collimator arrays", Proc. SPIE 5339, Photon Processing in Microelectronics and Photonics III, 144 (July 15, 2004); doi:10.1117/12.529072; http://dx.doi.org/10.1117/12.529072


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