Third and Fifth Order IMDs at Carrier Position
The third, instead of the fifth order intermodulation distortion (IMD3), is often thought to limit the radio-over-fibre system performance as it tends to fall in-band. The Golomb Ruler based frequency plan can overcome this IMD3 problem. However, its effect on the IMD5 is not known. A laser mo...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2007
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/16625/1/Mohamad%20Kadim.pdf http://ir.unimas.my/id/eprint/16625/ http://ieeexplore.ieee.org/document/4133640/ |
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| Summary: | The third, instead of the fifth order
intermodulation distortion (IMD3), is often thought to
limit the radio-over-fibre system performance as it
tends to fall in-band. The Golomb Ruler based
frequency plan can overcome this IMD3 problem.
However, its effect on the IMD5 is not known. A laser
model was derived based on Volterra Series with
electrical parasitics to simulate the carrier position
IMD3 and IMD5 for the Golomb Ruler and equally
spaced frequency plans at low and high RF input level,
supported by low bias current. The IMD5 was more
dominant than the IMD3 for the equally spaced
frequency plan at high RF input level. The opposite
was observed at low RF input. The Golomb Ruler
based frequency plan led to no IMD3s but low levels of
IMD5 were still present the carrier position but they
were lower than those due to the equal frequency
spaced channels. |
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