Application of high concentration thulium-doped fiber for achieving S-band gain flattened hybrid optical amplifier
A hybrid amplifier is proposed using a series configuration of Thulium-doped fiber (TDF) and Raman amplifiers, which shares the same pump laser. This amplifier covers the bandwidth of entire short wavelength band (S-band) region by combining the gain spectrum of the TDF and Raman amplifiers. The new...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Published: |
INOE
2010
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/13120/ https://joam.inoe.ro/index.php?option=magazine&op=view&idu=2520&catid=52 |
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| Summary: | A hybrid amplifier is proposed using a series configuration of Thulium-doped fiber (TDF) and Raman amplifiers, which shares the same pump laser. This amplifier covers the bandwidth of entire short wavelength band (S-band) region by combining the gain spectrum of the TDF and Raman amplifiers. The new method of gain flattening is suggested by adding a second stage amplifier with a high concentration TDF as a gain medium. The flat gain is theoretically obtained at around 24dB. The development of reliable high-power diode lasers in the 1420 nm wavelength range will make this type of wide-band hybrid amplifier an interesting candidate for S-band optical telecommunication systems. |
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