Abstract: A Raman amplifier is compared to an erbium-doped fiber amplifier for a 14 km analog fiber-optic link requiring the amplifier pump at the end of the link. The noise penalty for each amplifier at a given photocurrent is measured and compared. An analytical expression comparing the analog metrics as a function of noise penalty and photocurrent for different amplifiers is derived and used. The Raman amplifier has a lower noise penalty performance for a long-haul analog fiber-optic link versus an erbium-doped fiber amplifier placed at the end of the link. The best compromise comes from a hybrid amplifier, which combines the Raman amplifier with the erbium-doped fiber amplifier and offers the best RF performance while taking only a minimal penalty on the RF noise figure and spurious free dynamic range.
| Limitations: |
 APPROVED FOR PUBLIC RELEASE |
| Description: |
Memorandum rept. 27 Feb-16 Apr 2008 |
| Pages: |
17 |
| Report Date: |
17-Dec-2008 |
| Report Number: |
A159194 |
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