Bidirectional optical link over a single multimode fiber or waveguide
AssigneeAnalog Devices, Inc.
InventorShrenik Deliwala
Life of this patent
Estimating the term…
Abstract
A transceiver for use in a bidirectional optical communication link over a multimode channel is provided. The transceiver includes a single transverse mode light source in a transmitter. A waveguide or fiber based bidirectional coupler projects the transmitter mode to the high modes of the multimode channel. A detector coupled to predominantly all the modes of the channel via the waveguide or fiber based bidirectional coupler.
Claims10
A system for bidirectional optical communication over a multi mode channel, the system comprising:
- at least two transceivers on opposing ends of the multi mode channel, each of the transceivers comprising:
- a single transverse mode light source in a transmitter;
- a bidirectional coupler that projects the single transverse mode to higher order modes of the multi mode channel;
- and
- a detector in a receiver, the detector coupled to modes of the multi mode channel via the bidirectional coupler,
- wherein the bidirectional coupler comprises an optical splitter in which one branch is connected to the transmitter and the other branch is connected to the receiver, the optical splitter configured to couple substantially more light from the multi mode channel to the detector than to the transmitter.
A transceiver for use in bidirectional optical communication over a multi mode channel, the transceiver comprising:
- a single transverse mode light source;
- a bidirectional coupler that projects the single transverse mode to the higher order modes of the multimode channel to propagate in a first direction along the multi mode channel;
- and
- a detector coupled to modes of the channel via the bidirectional coupler and configured to receive an optical signal propagating in a second direction along the multi mode channel, the second direction opposite to the first direction,
- wherein the bidirectional coupler comprises an optical splitter in which one branch is coupled to the light source and the other branch is coupled to the detector, the optical splitter configured to couple substantially more light from the multi mode channel to the detector than to the light source.
Dependencies are inferred from the claim text.