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16 February 2017 Passively aligned multichannel fiber-pigtailing of planar integrated optical waveguides
Johannes Kremmel, Tobias Lamprecht, Nino Crameri, Markus Michler
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Optical Engineering, Vol. 56, Issue 2, 026115 (February 2017). https://doi.org/10.1117/1.OE.56.2.026115
Abstract
A silicon device to simplify the coupling of multiple single-mode fibers to embedded single-mode waveguides has been developed. The silicon device features alignment structures that enable a passive alignment of fibers to integrated waveguides. For passive alignment, precisely machined V-grooves on a silicon device are used and the planar lightwave circuit board features high-precision structures acting as a mechanical stop. The approach has been tested for up to eight fiber-to-waveguide connections. The alignment approach, the design, and the fabrication of the silicon device as well as the assembly process are presented. The characterization of the fiber-to-waveguide link reveals total coupling losses of (0.45±0.20  dB) per coupling interface, which is significantly lower than the values reported in earlier works. Subsequent climate tests reveal that the coupling losses remain stable during thermal cycling but increases significantly during an 85°C/85 Rh-test. All applied fabrication and bonding steps have been performed using standard MOEMS fabrication and packaging processes.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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Johannes Kremmel, Tobias Lamprecht, Nino Crameri, and Markus Michler "Passively aligned multichannel fiber-pigtailing of planar integrated optical waveguides," Optical Engineering 56(2), 026115 (16 February 2017). https://doi.org/10.1117/1.OE.56.2.026115
Received: 21 October 2016; Accepted: 2 February 2017; Published: 16 February 2017
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Cited by 4 scholarly publications.
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KEYWORDS
Waveguides
Optical fibers
Silicon
Optical alignment
Adhesives
Integrated optics
Interfaces
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