Wavelength multiplex optical communication module
US6760510B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2002 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Jan 5, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2938
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A wavelength multiplex optical communication module is provided. This module consists of first to third optical waveguides on a substrate, the first waveguide coupled to the second waveguide, with a light emitting device disposed on the end of the first waveguide opposite the coupler. A wavelength filter is located at one end of the substrate in conjunction with ends of the second and third waveguide for passing a wavelength of light to a detector while reflecting a different wavelength to the third waveguide. By virtue of this construction, the communication module can realize various functions such as transmission or reception of signal light with a plurality of wavelengths. That is, light with a specific wavelength can be sent, or other specific light in the input light can be received or transferred to another site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.