Paper
17 January 2011 Optical loss characterization of polymer waveguides on halogen and halogen-free FR-4 substrates
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Abstract
In order to characterize and optimize the overall link budget for an optical communication channel, the absorption loss of the waveguides must be well known, stable, and minimized. Research and characterization has been performed to ascertain the impact of the use of halogen vs. halogen free FR-4 circuit boards. Halogen is utilized within glass resin epoxy circuit boards as a flame retardant. An analysis of rectangular multi-mode polymer waveguide structures, with a fixed core dimension of 50 μm × 50 μm, was done to characterize the effects of the halogen FR-4 on the absorption loss. Thermal cycling times were varied in order to determine the relationship between heating of the polymer material, halogen diffusion into the optical cladding and core layer, and optical losses.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Brandon W. Swatowski, Christopher T. Middlebrook, Karl Walczak, and Michael C. Roggemann "Optical loss characterization of polymer waveguides on halogen and halogen-free FR-4 substrates", Proc. SPIE 7944, Optoelectronic Interconnects and Component Integration XI, 794409 (17 January 2011); https://doi.org/10.1117/12.866081
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Cited by 2 scholarly publications.
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KEYWORDS
Waveguides

Halogens

Signal attenuation

Polymers

Polymer multimode waveguides

Eye

Thermography

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