High capacity fiber-optic integrated transmission and switching systems

An optoelectronic integrated circuit, comprising:

• a complementary metal-oxide-semiconductor die comprising:
• a transmitter section comprising N channels each at a wavelength within a transparency spectrum of optical fiber with adaptation of the wavelength based on its value therein;
• a receiver section configured to receive each of the N channels optically and provide corresponding electrical signals based thereon;
• a first multiplexing structure for the transmitter section to combine the N channels into a composite signal level;
• a first demultiplexing structure for the receiver section to split the N channels from the composite signal level;
• a first portion of a switching fabric communicatively coupled to the receiver section;
• and
• a second portion of the switching fabric communicatively coupled to the transmitter section, wherein the switching fabric performs switching at a full signal level performing flow switching of composite signals;
• wherein the transmitter section comprises N lasers locked to a wavelength grid, and N modulators and drivers associated with each of the N lasers, and wherein the N modulators comprise one of a Mach-Zehnder modulator, an electro-absorption modulator, and a ring modulator with associated bandwidth, extinction ratio, and chirp control;
• and
• wherein the receiver section comprises a polarization splitter, a horizontal demultiplexer coupled to the polarization splitter, a vertical demultiplexer coupled to the polarization splitter, photodiodes each coupled to one of the horizontal demultiplexer and the vertical demultiplexer, and transimpedance amplifiers each coupled to one of the photodiodes.

A reconfigurable electrical add/drop multiplexing node, comprising:

• an optoelectronic integrated circuit comprising a transmitter section and a receiver section;
• and
• a switching fabric communicatively coupling the transmitter section and the receiver section of the optoelectronic integrated circuit, wherein the transmitter section and the receiver section interface the switching fabric at a full signal level and the switching fabric is configured to perform flow switching on the full signal level between the transmitter section and the receiver section with subrate grooming of the full signal performed in a separate device external to the optoelectronic integrated circuit;
• wherein the transmitter section comprises N channels with adaptation of a wavelength based on its value therein, wherein the receiver section is configured to receive each of the N channels optically and provide corresponding electrical signals based thereon, and
• wherein the switching fabric comprises a partially non-blocking, scalable, Torus architecture, wherein the partially non-blocking, scalable, Torus architecture is a three-dimensional structure of an X-plane, a Y-plane, and a Z-plane, and wherein:
• the X-plane is implemented utilizing one of the optoelectronic integrated circuit, a vertical-cavity surface-emitting laser transmitter and receiver, and a combination thereof,
• the Y-plane is implemented utilizing intra-shelf communications, and
• the Z-plane is implemented utilizing one of the optoelectronic integrated circuit, a vertical-cavity surface-emitting laser transmitter and receiver, and a combination thereof.