Optical: systems and elements – Optical amplifier – Optical fiber
Patent
1996-10-25
1999-01-19
Moskowitz, Nelson
Optical: systems and elements
Optical amplifier
Optical fiber
359345, 385126, 385127, H01S 330, H01S 307, G02B 622, G02B 626
Patent
active
058619739
ABSTRACT:
Disclosed is an optical amplifier for collectively amplifying optical signals having multiplexed wavelengths. The optical amplifier enables a gain control in a range as wide as 1 dBm or larger, and employs a fiber that is doped with a rare-earth metal, such as erbium. The erbium-doped fiber in cross section is formed of a plurality of glass materials that are doped with erbium, and excitation light wavelength bands relative to the erbium-doped fiber are provided in a number equivalent to the count of the glass materials.
REFERENCES:
patent: 5111334 (1992-05-01), Heidemann
patent: 5155621 (1992-10-01), Takeda et al.
patent: 5363385 (1994-11-01), Heidemann
patent: 5467218 (1995-11-01), Takeda et al.
patent: 5469292 (1995-11-01), Bjarklev et al.
patent: 5532870 (1996-07-01), Shigematsu et al.
patent: 5623362 (1997-04-01), Mitsuda et al.
patent: 5668659 (1997-09-01), Sakamoto et al.
Joseph C. Palais, "Fiber Optic Communications", Third Edition, pp. 114-117.
Search Report Issued in Counterpart British Application (Nov. 20, 1996).
Kashiwada et al, OFC '95 Opt. Fiber Comm., vol. 8, p. 438; abst. only herewith.
Inagaki Shinya
Shukunami Norifumi
Fujitsu Limited
Moskowitz Nelson
LandOfFree
Optical amplifier for collectively amplifying optical signals ha does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical amplifier for collectively amplifying optical signals ha, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical amplifier for collectively amplifying optical signals ha will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1251226