Analysis and Fabrication of Fused Fiber Optic Couplers for Communication Systems
Optical couplers such as fused optical fiber coupler are widely used in the network communication systems as either splitters or combiners. There are not much of theories available to describe the core and cladding interaction model inside fused coupler's region. In this study, suitable Mode...
| Main Author: | |
|---|---|
| Format: | Thesis |
| Language: | English English |
| Published: |
2006
|
| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/6127/1/FK_2006_47.pdf |
| _version_ | 1796967102198841344 |
|---|---|
| author | Shaari, Ahmad Zaki |
| author_facet | Shaari, Ahmad Zaki |
| author_sort | Shaari, Ahmad Zaki |
| collection | UPM |
| description | Optical couplers such as fused optical fiber coupler are widely used in the
network communication systems as either splitters or combiners. There are
not much of theories available to describe the core and cladding interaction
model inside fused coupler's region. In this study, suitable Models for
analysis of core to cladding guidance interaction using BPM-CAD
simulation are created. While core guidance occurs in between core ratios
1 to 0.65, cladding guidance does support propagation at certain core ratio
lower than 0.65 with slightly different results between various Models. The
Models are also able to generate low excess losses in both the simulated
core guidance and cladding guidance.
Excess loss in real fused couplers depends on their elongations, which can
be controlled through certain set-up parameters such as torch head
positions and motor speed. The effects of changing hydrogen flowrate and torch head positions do not have direct relationship with the insertion loss
of WDM coupler, hence scientifically, the conclusion of fusion temperature
effect on coupling cannot be made. Some design parameters are found out
to confirm quite well with the parameters found from fabrication. This has
been demonstrated through theoretical pulling signatures for various fused
couplers.
Besides examining 1 x 2 fused couplers, the study on triangular shape
arrangement of 1 x 3 monolithic star couplers do indicate that equal
couplings in all output ports are possible if correct Intertwined Method of
twisting fibers is used. The same technology used in fabricating fused
coupler, is used to fabricate lattice filter, which has channel spacing 2.84
nm or 178 GHz. Generally, all the studies are carried out at most levels
including theory, simulation and experiment. These findings or data are
analyzed to show the relationship between them and they are also
discussed in details in this thesis |
| first_indexed | 2024-03-06T07:08:59Z |
| format | Thesis |
| id | upm.eprints-6127 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-03-06T07:08:59Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | upm.eprints-61272023-10-11T02:42:46Z http://psasir.upm.edu.my/id/eprint/6127/ Analysis and Fabrication of Fused Fiber Optic Couplers for Communication Systems Shaari, Ahmad Zaki Optical couplers such as fused optical fiber coupler are widely used in the network communication systems as either splitters or combiners. There are not much of theories available to describe the core and cladding interaction model inside fused coupler's region. In this study, suitable Models for analysis of core to cladding guidance interaction using BPM-CAD simulation are created. While core guidance occurs in between core ratios 1 to 0.65, cladding guidance does support propagation at certain core ratio lower than 0.65 with slightly different results between various Models. The Models are also able to generate low excess losses in both the simulated core guidance and cladding guidance. Excess loss in real fused couplers depends on their elongations, which can be controlled through certain set-up parameters such as torch head positions and motor speed. The effects of changing hydrogen flowrate and torch head positions do not have direct relationship with the insertion loss of WDM coupler, hence scientifically, the conclusion of fusion temperature effect on coupling cannot be made. Some design parameters are found out to confirm quite well with the parameters found from fabrication. This has been demonstrated through theoretical pulling signatures for various fused couplers. Besides examining 1 x 2 fused couplers, the study on triangular shape arrangement of 1 x 3 monolithic star couplers do indicate that equal couplings in all output ports are possible if correct Intertwined Method of twisting fibers is used. The same technology used in fabricating fused coupler, is used to fabricate lattice filter, which has channel spacing 2.84 nm or 178 GHz. Generally, all the studies are carried out at most levels including theory, simulation and experiment. These findings or data are analyzed to show the relationship between them and they are also discussed in details in this thesis 2006-04 Thesis NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/6127/1/FK_2006_47.pdf Shaari, Ahmad Zaki (2006) Analysis and Fabrication of Fused Fiber Optic Couplers for Communication Systems. Masters thesis, Universiti Putra Malaysia. Optical fiber communications - Case studies Telecommunication systems Fiber Optic English |
| spellingShingle | Optical fiber communications - Case studies Telecommunication systems Fiber Optic Shaari, Ahmad Zaki Analysis and Fabrication of Fused Fiber Optic Couplers for Communication Systems |
| title | Analysis and Fabrication of Fused Fiber Optic Couplers for Communication Systems |
| title_full | Analysis and Fabrication of Fused Fiber Optic Couplers for Communication Systems |
| title_fullStr | Analysis and Fabrication of Fused Fiber Optic Couplers for Communication Systems |
| title_full_unstemmed | Analysis and Fabrication of Fused Fiber Optic Couplers for Communication Systems |
| title_short | Analysis and Fabrication of Fused Fiber Optic Couplers for Communication Systems |
| title_sort | analysis and fabrication of fused fiber optic couplers for communication systems |
| topic | Optical fiber communications - Case studies Telecommunication systems Fiber Optic |
| url | http://psasir.upm.edu.my/id/eprint/6127/1/FK_2006_47.pdf |
| work_keys_str_mv | AT shaariahmadzaki analysisandfabricationoffusedfiberopticcouplersforcommunicationsystems |