In this dissertation, we study the fabrication and performance of fiber coupler, add/drop filter module, and flat-top interleaver for use in dense wavelength division multiplexing (DWDM) systems. In the low loss fused biconical taper coupler (FBTC), an optimum approach for fabrication of FBTC is a lower filament speed, a higher gas flow rate, and a longer pulling length. By applying this optimum approach that the FBTCs with low loss of 0.13 dB and small taper angle of 20o have been fabricated successfully. In the add/drop filter module, the module-insertion loss difference (0.3 dB) and angular tilt misalignment (0.05o) are found after undergoing 42 temperature cycles for the imperfect soldering process.
We present our experimental results of a flat-top 50 GHz optical interleaver using two Gires-Tournois Etalons (GTEs) as phase dispersive mirrors in a Michelson interferometer. The spectral characteristics of the interleaver in a 50 GHz channel spacing application exhibit a 0.5 dB passband larger than 43.8 GHz (88% of the spacing), a 25 dB stopband greater than 40 GHz (80% of the spacing), and a channel isolation higher than 35 dB. The result shows that the interleaver interferometer with novel GTE technique can simultaneously produce a 0.5 dB passband and a 25 dB stopband wider than other interferometer techniques.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0219103-144409 |
| Date | 19 February 2003 |
| Creators | Hsieh, Chao-Shing |
| Contributors | Po-Chi Yeh, Ching Ting Lee, Yung Sien Liu, Yin-Chieh Lai, Yan-Kuin Su, Sien Chi, Wood-Hi Cheng, Yung-Kuang Chen, Sheng-Lung Huang |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0219103-144409 |
| Rights | unrestricted, Copyright information available at source archive |
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