Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Reexamination Certificate
2006-03-07
2006-03-07
Group, Karl (Department: 1755)
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
C501S010000, C359S334000, C385S142000, C385S144000
Reexamination Certificate
active
07008892
ABSTRACT:
An optical fiber has a fiber core with a higher refractive index and a cladding surrounding the core with a lower refractive index. The fiber core is made of a multi-component oxide glass composition which consists of a glass-forming component and two Raman-active components. The glass former is SiO2and the Raman active components are of Li2O and Nb2O5. The concentration of the glass former is between 30 and 90 mol % and of the Raman active components is up to 50 mol % in total. The composition may further include a glass-modifying component of alkaline such as Li2O, Na2O, K2O, Rb2O, Cs2O or earth-alkaline such as BeO, MgO, CaO, SrO, BaO in a concentration of up to 40 mol %.
REFERENCES:
patent: 3503764 (1970-03-01), Young
patent: 3513004 (1970-05-01), Pfaender et al.
patent: 4790619 (1988-12-01), Lines et al.
patent: 4932752 (1990-06-01), Krashkevich et al.
patent: 5284807 (1994-02-01), Komori et al.
patent: 2005/0024713 (2005-02-01), Bourova et al.
patent: 0498425 (1992-12-01), None
patent: 0 248 517 (1994-11-01), None
patent: 1534979 (1995-04-01), None
Masuda H et al: “Ultra-wide-band Raman amplifier using tellurite and silica fibres” Electronics Letters, IEE Stevenage, GB, vol. 38, No. 16, Aug. 1, 2002, pp. 867-868, XP006018643.
Patent Abstracts of Japan, vol. 2000, No. 21, Aug. 3, 2001, & JP 2001 109026 A ( Nippon Telgr & teleph Corp), Apr. 20, 2001.
Masuda H, et al: “Ultra-wide-band Hybrid tellurite/silica fiber Raman Amplifier” OFC 2002, THB6, pp. 388-390.
Blanchandin Stéphanie
Bourova Ekaterina
Garapon Jérome
Alcatel
Group Karl
LandOfFree
Raman-active optical fiber does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Raman-active optical fiber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Raman-active optical fiber will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3611455