Optical amplification of CWDM channels using optical...

Details Optical amplification of CWDM channels using optical... Optical amplification of CWDM channels using optical...

2006-08-08

2006-08-08

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Correction of deleterious effects

C359S341100

Reexamination Certificate

active

07088498

ABSTRACT:
An optical amplifier system and method are disclosed for amplifying CWDM channels. The optical amplifier system includes a first optical amplifier that includes a fluoride-based optical fiber of a first length and a second optical amplifier that includes a fluoride-based optical fiber of a second length. The first length of fluoride-based optical fiber in the first optical amplifier is different than the second length of fluoride-based optical fiber in the second optical amplifier. When in operation, the first optical amplifier receives optical signals for CWDM channels and amplifies the CWDM channels. The second optical amplifier then receives the optical signals and amplifies the CWDM channels. Between the first optical amplifier and the second optical amplifier, the optical amplifier system generates a continuous gain bandwidth over the CWDM channels.

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Y. Akasaka et al.; 100 nm gain bandwidth amplifier based on 980 nm pumped cerium codoped fluoride EDF; Electronics Letters; May 29, 2003; pp. 836-838; Vol. 39, No. 11; Iee Stevenage, GB.
Scott S-H Yam et al.; Hybrid doped fiber amplifier with 100-nm bandwidth for coarse wavelength division multiplexing; Optics Communications; May 15, 2005; pp. 539-542; vol. 249, No. 4-6; North-Holland Publishing Co.; Amsterdam, NL.

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