| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_134e39196fea37adfe68c86cbc0a8351 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B6-02114 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B6-34 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B6-02 |
| filingDate |
2001-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2003-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5837ff04c96fa0ff3f09e8f6d3b4dae3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_77fa7afd0fa6c75226fe865837baef0b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5d20a5c61f6a59ac1f4026182d0e5a89 |
| publicationDate |
2003-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6603903-B1 |
| titleOfInvention |
Fabrication of photosensitive strong grating couplers |
| abstract |
Systems devices and methods in accordance with the invention impart high strength index of refraction patterns to photosensitive optical devices, such as Bragg gratings written in optical fibers. A length of small diameter fiber retaining photosensitivity is fabricated by flame elongation of an optical fiber precursor having dopant containing cladding, using a diffuse, low velocity inverted flame that does not introduce water, OH or H2 into the fiber. By varying the flame velocity during each scan the fiber is diminished to a small, uniform diameter, waist region. Photosensitivity is preserved and enhanced by exposure of the prepared waist region to scanning actinic illumination within an in-diffusing environment of pressurizing hydrogen or deuterium, and controlling the exposure to optimize the photo-induced index change. The photochemistry is balanced to provide a strong index of refraction grating by adjusting illumination instensity and scanning velocity to arrive at a low fraction of a selected photoabsorbing component of the dopant. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8135050-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8189971-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004052459-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8139910-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8232687-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9022037-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8398622-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8150271-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8554037-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011146071-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8921733-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6823110-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9281653-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8125704-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8173929-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10983062-B2 |
| priorityDate |
2000-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |