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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 10 — May. 19, 2014
  • pp: 12122–12132

Hydrogenated amorphous silicon photonic device trimming by UV-irradiation

Timo Lipka, Melanie Kiepsch, Hoc Khiem Trieu, and Jörg Müller  »View Author Affiliations


Optics Express, Vol. 22, Issue 10, pp. 12122-12132 (2014)
http://dx.doi.org/10.1364/OE.22.012122


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Abstract

A method to compensate for fabrication tolerances and to fine-tune individual photonic circuit components is inevitable for wafer-scale photonic systems even with most-advanced CMOS-fabrication tools. We report a cost-effective and highly accurate method for the permanent trimming of hydrogenated amorphous silicon photonic devices by UV-irradiation. Microring resonators and Mach-Zehnder-interferometers were utilized as photonic test devices. The MZIs were tuned forth and back over their complete free spectral range of 5.5 nm by locally trimming the two MZI-arms. The trimming range exceeds 8 nm for compact ring resonators with trimming accuracies of 20 pm. Trimming speeds of ≥ 10 GHz/s were achieved. The components did not show any substantial device degradation.

© 2014 Optical Society of America

OCIS Codes
(230.5750) Optical devices : Resonators
(250.5300) Optoelectronics : Photonic integrated circuits
(220.4241) Optical design and fabrication : Nanostructure fabrication
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Integrated Optics

History
Original Manuscript: March 26, 2014
Revised Manuscript: April 25, 2014
Manuscript Accepted: April 26, 2014
Published: May 12, 2014

Citation
Timo Lipka, Melanie Kiepsch, Hoc Khiem Trieu, and Jörg Müller, "Hydrogenated amorphous silicon photonic device trimming by UV-irradiation," Opt. Express 22, 12122-12132 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-10-12122


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