Method and system for silicon photonics wavelength division multiplexing transceivers
First Claim
1. A method for optical communication, the method comprising:
- in a transceiver integrated in a silicon photonics chip;
communicating first and second modulated output optical signals into an optical fiber coupled to the chip utilizing a multiplexing grating coupler in the chip, wherein the multiplexing grating coupler comprises;
a pair of intersecting gratings with scatterers situated at intersections of the intersecting gratings;
an expanding region between the pair of intersecting gratings and an optical waveguide; and
a slit comprising a reduced thickness of silicon between the pair of intersecting gratings and the expanding region; and
splitting a received input optical signal into a modulated input optical signal at a first wavelength and a modulated input optical signal at a second wavelength utilizing a demultiplexing grating coupler in the chip.
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Accused Products
Abstract
Methods and systems for silicon photonics wavelength division multiplexing transceivers are disclosed and may include, in a transceiver integrated in a silicon photonics chip: generating a first modulated output optical signal at a first wavelength utilizing a first electrical signal, generating a second modulated output optical signal at a second wavelength utilizing a second electrical signal, communicating the first and second modulated output optical signals into an optical fiber coupled to the chip utilizing a multiplexing grating coupler in the chip. A received input optical signal may be split into a modulated input optical signal at the first wavelength and a modulated input optical signal at the second wavelength utilizing a demultiplexing grating coupler in the chip. The first and second modulated input optical signals may be converted to first and second electrical input signals utilizing first and second photodetectors in the chip.
9 Citations
16 Claims
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1. A method for optical communication, the method comprising:
in a transceiver integrated in a silicon photonics chip; communicating first and second modulated output optical signals into an optical fiber coupled to the chip utilizing a multiplexing grating coupler in the chip, wherein the multiplexing grating coupler comprises; a pair of intersecting gratings with scatterers situated at intersections of the intersecting gratings; an expanding region between the pair of intersecting gratings and an optical waveguide; and a slit comprising a reduced thickness of silicon between the pair of intersecting gratings and the expanding region; and splitting a received input optical signal into a modulated input optical signal at a first wavelength and a modulated input optical signal at a second wavelength utilizing a demultiplexing grating coupler in the chip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for communication, the system comprising:
a transceiver integrated in a silicon photonics chip, the transceiver being operable to; communicate first and second modulated output optical signals into an optical fiber coupled to the chip utilizing a multiplexing grating coupler in the chip, wherein the multiplexing grating coupler comprises; a pair of intersecting gratings with scatterers situated at intersections of the intersecting gratings; an expanding region between the pair of intersecting gratings and an optical waveguide; and a slit comprising a reduced thickness of silicon between the pair of intersecting gratings and the expanding region; and split a received input optical signal into a first modulated input optical signal at a first wavelength and a second modulated input optical signal at a second wavelength utilizing a demultiplexing grating coupler in the chip. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
Specification