http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1343029-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f5c80aa85e1b91c32be4359200ecf66b |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B2006-12159 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B6-29352 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B6-1221 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B6-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B6-12007 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B6-34 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B6-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B6-122 |
| filingDate | 2003-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_700d1c3bc47c007b80d63366785ba6ce http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0775d4aea1d789a0552dbbdf56162117 |
| publicationDate | 2003-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1343029-A1 |
| titleOfInvention | Optical waveguide coupler circuit |
| abstract | The present invention relates to an optical waveguide coupler device. As shown in Fig. 1, the optical waveguide coupler device 8 comprises two optical waveguide cores 2, 3 formed on the surface of a substrate 1. The optical waveguide cores 2, 3 are covered by lower and upper cladding layers 6, 7 both formed on the substrate 1; and the two optical waveguide cores 2, 3 are brought close to and in parallel with each other at two sites to form two directional couplers 4, 5 there. The cross-section and refractive index of each of the optical waveguide cores 2, 3 and the parameters of other elements of the circuit are optimized such that an optical signal is reliably routed by the circuit without undergoing a wavelength shift even when the circuit is exposed to the changes of ambient temperature. |
| priorityDate | 2002-03-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.