Semiconductor optical amplifier based Raman pump

Details Semiconductor optical amplifier based Raman pump Semiconductor optical amplifier based Raman pump

2007-06-19

2007-06-19

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Raman or brillouin process

Reexamination Certificate

active

10786079

ABSTRACT:
An optical signal amplifier comprises a Semiconductor Optical Amplifier SOA used as semiconductor Amplified Spontaneous Emission ASE source. This SOA produces optical pumping seed which has to be amplified to get a large pump power. With such large pump power, it will be possible to counteract the loss in a fiber link of optical signals transmitted through it by applying said amplified pumping seed as Raman amplification on the optical signals. The invention further relates to a method for amplifying an optical signal comprising the combination of a semiconductor ASE source together with a high-power pump source. Latter will be used to amplify optical pumping seed to be produced by the semi-conductor ASE source. Accordingly, the obtained amplified pumping seed will be used to act as a Raman amplification of optical signals.

REFERENCES:
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patent: 2002/0015220 (2002-02-01), Papernyl et al.
patent: 2004/0247275 (2004-12-01), Vakhshoori et al.
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D. Vakhshoori, et al., Raman Amplification Using High-Power Incoherent Semiconductor Pump Sources , PD47-1 thru PD47-3, OFC-2003.

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