Optical add/drop multiplexer (OADM) and optical wavelength cross-connect (WXC) are two
key components to enable greater connectivity and flexibility in dense wavelength division
multiplexing (DWDM) networks. Fiber Bragg grating (FBG) based components have several
inherent advantages such as compact, low-insertion loss, high reflectivity, no-linearity
effect, polarization insensitivity and wavelength tunability.
We experimentally investigate the system power penalty induced by the chromatic dispersion
of the FBG as a function of the wavelength detuning of the reflection spectrum for 10 Gb/s
signals, which was reflected by cascade of FBGs. Such power penalty limits the number of
cascaded gratings and restricts the allowable range of wavelength detuning.
In our experiments, we have used several FBG filters with 3-dB bandwidth of 0.43 nm.
According to the experimental results, power penalty increases from the central wavelength
to the edge wavelength of the reflection spectrum. There are 0.4 dB and 7 dB power penalty
for one single FBG and ten cascaded-FBG filter, respectively, when the central wavelength
was detuned to ¡Ó0.2 nm and ¡V0.1/+0.14 nm. This study result may give a design guideline of
fiber grating-based optical add-drop multiplexers or optical wavelength cross-connects in DWDM
nodes.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0620101-091421 |
| Date | 20 June 2001 |
| Creators | Huang, Ming-Hong |
| Contributors | Yung-Kuang chen, I-Min Jiang, Jy-Wang Liaw, Cheng-Chung Lee, I-Chang Jou |
| 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-0620101-091421 |
| Rights | campus_withheld, Copyright information available at source archive |
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