Raman gain measuring method and apparatus

Details Raman gain measuring method and apparatus Raman gain measuring method and apparatus

2006-05-23

2006-05-23

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Raman or brillouin process

Reexamination Certificate

active

07050220

ABSTRACT:
In a Raman gain measuring method according to the invention, a CW (continuous wave) probe light is input into a Raman amplifying medium. A Raman pumping light being binary-intensity-modulated at a modulation factor is generated. The Raman pumping light is input into the Raman amplifying medium. Two index values regarding to AC component and DC component are extracted from the probe light having propagated through the Raman amplifying medium. The Raman gain of the Raman amplifying medium is determined from the two index values and the modulation factor.

REFERENCES:
patent: 6907157 (2005-06-01), Harasawa
patent: 6922532 (2005-07-01), Simard et al.
patent: 2002-202224 (2002-07-01), None
patent: 2002-250674 (2002-09-01), None
patent: 2002-296145 (2002-10-01), None

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