Optical signal transmission with thermooptically controlled optical switching
First Claim
1. An optical device for an optical signal transmission system, said optical device comprisingat least one optical wave guide switch (11 to 15) for switching between at least two transmission paths for transmission of light;
- and an optical level adjusting device (16 to 24) connected in series with said at least one optical wave guide switch in at least one of said at least two transmission paths without intervening optical components;
wherein said optical level adjusting device (16 to 24) includes means (22, 24) for thermooptic continuous adjustment of a level of the light transmittance through the optical level adjusting device;
wherein said at least one optical wave guide switch (11 to 15) includes means (14,15) for thermooptic switching between said at least two transmission paths; and
wherein said at least one optical wave guide switch and said optical level adjusting device are arranged in an integrated thermooptic circuit in a common substrate.
2 Assignments
0 Petitions
Accused Products
Abstract
The optical signal transmission system includes one or more optical wave guide switches (11 to 15) for switching between transmission paths for transmission of light signals and an optical level adjusting device (16 to 24) connected with the one or more optical wave guide switches in at least one of the transmission paths. The optical level adjusting device (16 to 24) controls its own light transmittance with a thermooptic device (22,24) and the one or more optical wave guide switches (11 to 15) switch between transmission paths by a similar thermooptic device (14,15). The one or more optical wave guide switches and the optical level adjusting device are arranged in an integrated thermooptic circuit in a common substrate.
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Citations
6 Claims
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1. An optical device for an optical signal transmission system, said optical device comprising
at least one optical wave guide switch (11 to 15) for switching between at least two transmission paths for transmission of light; - and
an optical level adjusting device (16 to 24) connected in series with said at least one optical wave guide switch in at least one of said at least two transmission paths without intervening optical components;
wherein said optical level adjusting device (16 to 24) includes means (22, 24) for thermooptic continuous adjustment of a level of the light transmittance through the optical level adjusting device;
wherein said at least one optical wave guide switch (11 to 15) includes means (14,15) for thermooptic switching between said at least two transmission paths; and
wherein said at least one optical wave guide switch and said optical level adjusting device are arranged in an integrated thermooptic circuit in a common substrate. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification