Coupling Theory And Mechanism Of Light Source And Fiber For Rotational Joint In Communication
Date Issued
2012
Date
2012
Author(s)
Huang, Kuo-En
Abstract
This work investigated the coupling mechanism of rotational joint that was used for optical fiber communication. Following a previous design of the rotational fiber joint, the micro structure with four graded-index lens (GRIN lens) was used as the analysis model in this study. The four GRIN lens architecture can be used to achieve the two-channel fiber communication. As a consequence, this work analyzed single-channel and two-channel systems theoretically and experimentally. At the end, a different optical architecture was proposed and discussed.
In theoretical, Code V was used to calculate different mis-alignment losses of the rotational fiber joint. In detail, the mis-alignment can be categorized as lateral offset, separation, and angular tilt. Based on this simulation, the critical factor of different configurations were analyzed. For the single channel system, the angular tilt is the critical factor. For the two channel system, on the other hand, the lateral offset and separation are the critical factors. Moreover, a glued system and automatic measurement system were implemented to verify the simulation result. The position of glued fiber not only affected the coupling efficiency but also lead a two-peak power response in one rotation cycle. In summary, this work developed an effective assessment to analyze the two-channel rotational joint. In addition, it integrated both theoretical simulation and experimental analysis to realize a novel approach to design rotational fiber joint.
Subjects
Fiber optic slip ring
Graded-index lens
Glue
Optical fiber efficiency
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
index.html
Size
23.27 KB
Format
HTML
Checksum
(MD5):7df0a843098c68a70e434e16a2dc134c