Guided-wave optical multi/demultiplexer
US5499308A · kind A · utility
198Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1995 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | Mar 13, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29352
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A guided-wave optical multi/demultiplexer is capable of providing a wide wavelength band freely. Each of two directional couplers is constructed so that the coupling ratio of light intensity in the wavelength .lambda..sub.2 is at least 50% and the coupling ratio of light intensity in the wavelength .lambda..sub.3 having a wavelength band in close proximity to the wavelength .lambda..sub.1 is 0% or 100%, the light in the wave band containing the wavelength .lambda..sub.1 and the wavelength .lambda..sub.3 and the light in the wave band containing the wavelength .lambda..sub.2 being multiplexed and demultiplexed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.