The Effects of Taper Parameters and Dispersion Mechanism on Tunable Short Wavelength Pass Fiber Filters
碩士 === 國立交通大學 === 光電工程系所 === 97 === In the thesis, we demonstrate a new type of thermo-optic tunable short-wavelength-pass fiber filters (SPF) based on tapering standard single-mode fibers (SMF-28) to form fiber tapers, which are immersed in index matching liquids. Some of the significant results ar...
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| Format: | Others |
| Language: | en_US |
| Published: |
2009
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| Online Access: | http://ndltd.ncl.edu.tw/handle/68012637910186966828 |
| Summary: | 碩士 === 國立交通大學 === 光電工程系所 === 97 === In the thesis, we demonstrate a new type of thermo-optic tunable short-wavelength-pass fiber filters (SPF) based on tapering standard single-mode fibers (SMF-28) to form fiber tapers, which are immersed in index matching liquids. Some of the significant results are the tuning efficiency can be 50nm/oc, the cut-off efficiency can be -1.2dB/nm and the rejection efficiency can be 55 dB. The effects of various taper parameters on SPF have also been investigated by simulation to determine the optimum parameter range. We have also demonstrated a new structure of widely tunable LP01-C tapered fiber filters with an even higher cutoff slope based on the tapered depressed-index outer ring fiber made from the double cladding fibers (DCLFs). The observed experimental results are explained by the dispersion mechanism and confirmed by theoretical simulation.
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