Physical Limitation of Optical Elements
Limitations of Optical Devices
- No optical buffering (not a delay line)
- No optical processing
Limitations of Optical WDM
- Large bandwidth on single wavelength
- Long latency time for Wavelength tuning and conversion
Limitations of Optical Switch
- Large bandwidth on single fiber
- Relative small size of optical switch (e.g. 256 x 256)
- Long latency time for Switching-over