| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a8a9982b1666c54b5bf02d6c944891e4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-0147
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-0126
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F2202-022
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F2203-48 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-3137
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-061
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-225 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-01 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-061
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-313
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-225 |
| filingDate |
2000-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7eb8d0a2a764e956d297be2f97f9124
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_801737c81a985cfd6a26f479e307861f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_25320a71cc8cf2967a2606de8bbf7d23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_18f8068a502986fe82fa553479c6e81d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d44ecf7e32f2c8ef73664f24cef9e60b |
| publicationDate |
2001-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-0144864-A1 |
| titleOfInvention |
Photothermal optical switch and variable attenuator |
| abstract |
An optical device (30) which utilizes a photothermal optical effect to achieve switching or attenuation includes a waveguide defined by a waveguide core (36) and a surrounding cladding (34), wherein the polymer waveguide core (36) includes a region (38) consisting of a photothermally responsive material having an absorption coefficient at a switch wavelength or attenuation wavelength that is higher than an absorption coefficient at a signal wavelength. Switching devices include an optical splitter circuit having a branch (36B) that includes the photothermally responsive material, and either a multiplexer for introducing light at the switch wavelength into the optical circuit or a light source (40) focused at the photothermally responsive material. Attenuating devices include a Mach-Zehnder type interferometer having a branch that includes the photothermally responsive material and either a multiplexer for introducing light at the attenuation wavelength into the optical circuit or a light source focused at the photothermally responsive material. |
| priorityDate |
1999-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |