Optical waveguides – Optical fiber waveguide with cladding
Reexamination Certificate
2007-05-08
2007-05-08
Pak, Sung (Department: 2874)
Optical waveguides
Optical fiber waveguide with cladding
C385S127000
Reexamination Certificate
active
10675350
ABSTRACT:
An optical waveguide can include a first region (12), a core (14) and a cladding (16). The core (14) surrounds the first region (12), and the cladding (16) surrounds the core (14). Typically, the core (14) includes an active material. In a further aspect, the invention features a system that includes two fibers (10, 48). One of the fibers has a first region, a first core (e.g., a multimode core) surrounding the first region, and a cladding surrounding the core. The other fiber has a core (e.g., a single mode core). The fibers can optically communicate so that energy can propagate from one of the cores to the other of the cores of the two fibers. Typically, at least one of the cores includes an active material.
REFERENCES:
patent: 4815079 (1989-03-01), Snitzer et al.
patent: 5027079 (1991-06-01), Desurvire et al.
patent: 5058976 (1991-10-01), DiGiovanni et al.
patent: 5077087 (1991-12-01), Byer et al.
patent: 5121460 (1992-06-01), Tumminelli et al.
patent: 5125066 (1992-06-01), Ishiguro et al.
patent: 5225925 (1993-07-01), Grubb et al.
patent: 5259046 (1993-11-01), DiGiovanni et al.
patent: 5278850 (1994-01-01), Ainslie et al.
patent: 5412672 (1995-05-01), Ainslie et al.
patent: 5530709 (1996-06-01), Waarts et al.
patent: 5877890 (1999-03-01), Snitzer
patent: 5881197 (1999-03-01), Dong et al.
patent: 6018533 (2000-01-01), Krivoshlykov
patent: 6043930 (2000-03-01), Inagaki
patent: 6081369 (2000-06-01), Waarts et al.
patent: 6097512 (2000-08-01), Ainslie et al.
patent: 6192179 (2001-02-01), Berkey et al.
patent: 6288835 (2001-09-01), Nilsson et al.
patent: 6445494 (2002-09-01), Nilsson et al.
patent: 6538807 (2003-03-01), Kakui et al.
patent: 6650663 (2003-11-01), Diening et al.
patent: 2004/0086245 (2004-05-01), Farroni et al.
patent: 2004/0156606 (2004-08-01), Po
patent: 0 689 068 (1995-12-01), None
patent: 0 881 511 (1998-12-01), None
patent: 0 898 348 (1999-02-01), None
patent: 1 095 432 (2003-09-01), None
patent: 02 75 7827 (2005-01-01), None
patent: WO 97/35220 (1997-09-01), None
patent: WO 02/071554 (2003-10-01), None
Ghatak et al.; “Design of Waveguide Refractive Index Profile to Obtain Flat Modal Field”; SPIE vol. 3666, pp. 40-44 (1998).
Dawson et al.; “Large flattened mode optical fiber for high output energy pulsed fiber lasers”; CLEO Jun. 3, 2003, 3.30-3.45, CWD5.
Optoelectronics Research Centre; “High power fiber lasers : pulsed fiber devices”; www.orc.soton.ac.uk/hpfl/pulsed.php, printed Mar. 30, 2005.
Vienne et al.; “Fabrication and Characterization of Yb3+:Er3+ Phosphosilicate Fibers for Lasers”; Journal of Lightwave Technology, vol. 16, No. 11, pp. 1990-2001 (Nov. 1998).
Nilsson et al.; “Yb3+ -ring-doped fiber for high-energy pulse amplification”; Optics Letters, vol. 22, No. 14, pp. 1092-1095 (Jul. 15, 1997).
Nilsson et al.; “Ring-doped cladding-pumped single-mode three-level fiber laser”; Optics Letters, vol. 23, No. 5, pp. 355-357 (Mar. 1, 1998).
Alvarez-Chavez et al.; “High-energy, high-power ytterbium-doped Q-switched fiber laser”; Optics Letters, vol. 25, No. 1, pp. 37-39 (Jan. 1, 2000).
Samson et al; “Optical Fiber for Handling Higher Powers”; U.S. Appl. No. 10/820,475, filed Apr. 8, 2004.
Claims currently pending (as filed Mar. 28, 2005 with Response to Office Action mailed by Examiner on Sep. 27, 2004) in U.S. Appl. No. 10/653,435.
Hong Po; PCT International Publication No. WO 02/079829 A1, including search report; “Ring Core Fiber”, Filing Date: Mar. 27, 2003.
Nufern
Pak Sung
Rainville Peter J.
LandOfFree
Ring core 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 Ring core fiber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ring core fiber will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3803570