Optical coupling device and process for fabrication thereof
An optical coupling device has an optical wave-guide varied in difference in specific refractive index between a clad layer and a core layer, and the optical wave-guide serves as a convergent/divergent spot size converter; since reduction in cross section of the core layer is not required for the co...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | An optical coupling device has an optical wave-guide varied in difference in specific refractive index between a clad layer and a core layer, and the optical wave-guide serves as a convergent/divergent spot size converter; since reduction in cross section of the core layer is not required for the convergent/divergent spot size converter so that the optical coupling device is produced at a high production yield. |
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