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US 7,480,428 B2Granted
Mechanism to spectrally combine and divide optical I/O
AssigneeIntel Corporation
InventorAn-Chun Tien
Life of this patent
Estimating the term…
Abstract
An optical assembly is disclosed. The optical assembly includes two or more photo devices to transmit and receive optical signals and a pair of parallel gratings to combine optical signals received from the two or more photo devices prior to transmitting the optical signals to an optical fiber and to separate combined optical signals received from the optical fiber into two or more optical signals to be received at the two or more photo devices.
Claims19
An optical assembly comprising:
- a first photo device to transmit and receive optical signals at a first wavelength;
- a second photo device to transmit and receive optical signals at a second wavelength;
- and
- a grating having a first side including a first set of parallel gratings and a second side including a second set of parallel gratings with a same grating period as the first set of parallel grating to enable an incident beam received at either side of the grating to have a parallel exit beam, the first side to combine optical signals received from the first and second photo devices prior to transmitting the optical signals to an optical fiber and the second side to separate combined optical signals having the first and second wavelengths received from the optical fiber into optical signals to be received at the first and second photo devices.
1 more element
A method comprising:
- receiving first optical signals from a first photo device at a first side of a grating including a first set of parallel;
- receiving second optical signals from a second photo device at the first side of the grating;
- combining the first and second optical signals at the grating prior to transmitting the combined optical signals to an optical fiber;
- receiving combined optical signals at a second side of the grating from the optical fiber, the second side including a second set of parallel gratings with a same grating period as the first set of parallel grating to enable an incident beam received at either side of the grating to have a parallel exit beam, the first side;
- and
- separating the combined optical signals into the first optical signals to be received at the first photo device and the second optical signals to be received at the second photo device.
3 more elements
A system comprising:
- a printed circuit board (PCB);
- a first photo device mounted on the PCB to transmit and receive first optical signals;
- a second photo device mounted on the PCB to transmit and receive second optical signals;
- an optical fiber to transfer optical signals;
- and
- a grating having a first side including a first set of parallel gratings and a second side including a second set of parallel gratings with a same grating period as the first set of parallel grating to enable an incident beam received at either side of the granting to have a parallel exit beam, the first side to combine optical signals received from the first and second photo devices prior to transmitting the optical signals to an optical fiber and the second side to separate combined optical signals having the first and second wavelengths received from the optical fiber into optical signals to be received at the first and second photo devices.
3 more elements
Dependencies are inferred from the claim text.