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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 20 — Sep. 24, 2012
  • pp: 22922–22933

Photo-chemical study and optical properties of microtips self- written on vertical laser diodes using NIR photo-polymerization

D. Barat, V. Bardinal, I. Dika, O. Soppera, P. Debernardi, A. Rumyantseva, B. Reig, M. Renault, T. Camps, A. Bruyant, J.B. Doucet, J.P. Malval, and E. Daran  »View Author Affiliations

Optics Express, Vol. 20, Issue 20, pp. 22922-22933 (2012)

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Near infra-red (NIR) self-guided photo-polymerization is investigated in the context of micro-optics photo-fabrication on VCSELs (Vertical-Cavity Surface Emitting Lasers). We present the optimized process we have developed to allow for a collective fabrication on III-V devices wafers under real-time optical monitoring. The influence of photo-chemical parameters on final micro-elements dimensions is studied for two types of single mode 760nm VCSELs. The difference of the resulting tip shape between the two lasers is due to the strong differences of their emissions, as they are nicely reproduced by the computed near-field profiles. The tip shapes are also compared to those produced by the light emitted by an optical fiber and differences with VCSEL tips are discussed. Also the VCSEL characteristics with fabricated tips are discussed and found in good agreement with optical modeling.

© 2012 OSA

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping
(220.3630) Optical design and fabrication : Lenses
(220.4000) Optical design and fabrication : Microstructure fabrication
(250.7260) Optoelectronics : Vertical cavity surface emitting lasers
(350.3950) Other areas of optics : Micro-optics
(350.5130) Other areas of optics : Photochemistry

ToC Category:
Laser Microfabrication

Original Manuscript: June 22, 2012
Revised Manuscript: August 27, 2012
Manuscript Accepted: August 27, 2012
Published: September 21, 2012

D. Barat, V. Bardinal, I. Dika, O. Soppera, P. Debernardi, A. Rumyantseva, B. Reig, M. Renault, T. Camps, A. Bruyant, J.B. Doucet, J.P. Malval, and E. Daran, "Photo-chemical study and optical properties of microtips self- written on vertical laser diodes using NIR photo-polymerization," Opt. Express 20, 22922-22933 (2012)

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