Pumping method and unit for optical amplifiers

Details Pumping method and unit for optical amplifiers Pumping method and unit for optical amplifiers

2006-08-22

2006-08-22

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Optical fiber

C359S341330

Reexamination Certificate

active

07095554

ABSTRACT:
Optical pumping unit comprising a first pump source adapted to emit a first pump radiation at wavelength λp1;a second pump source adapted to emit a second pump radiation at wavelength λp2,with wavelength λp2different from wavelength λp1;and a common coupling section comprising a first and a second port connected to the first and second pump source for respectively receiving the first and the second pump radiation; a third port for a signal radiation at wavelength λs; a fourth port, wherein the coupling section is adapted to combine, in the fourth port, the signal radiation and the first and second pump radiation through a reversal of the direction of propagation of the first pump radiation from the first port to the fourth port.

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