Pumping light source having amplification-band extending...

Details Pumping light source having amplification-band extending... Pumping light source having amplification-band extending...

2007-05-29

2007-05-29

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Raman or brillouin process

C359S337100, C359S341330

Reexamination Certificate

active

11035321

ABSTRACT:
A pumping light source unit for Raman amplification includes at least one pumping light source that outputs a first pumping light covering a current amplification band; at least one additional pumping light source that outputs a second pumping light covering an amplification band to be extended; and a setting control unit that controls a setting for a gain of an entire amplification band by resetting outputs of the first pumping light and the second pumping light. The pumping light source unit has a function of extending the amplification band in a stepwise manner.

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