UNIQUE APPROACH TO ANALOG SIGNAL PROCESSING

Data Signals Intelligence

The Data Age is Here

The impact and value of data have never been more profound. Data has always existed but has recently taken center stage in society. Global network traffic doubles every three years thanks to applications in Cloud, video streaming, and IoT. With each person on Earth generating more than 1.7 megabyte of data per second, the need for technology to gather, transport, and manage this data has never been greater. GXC leverages and leads innovations in RF-photonics to reduce the energy and computing costs of data transport and processing for 5G and industry 4.0. GXC innovation will fuel the growth and expansion of 5G connectivity for years to come. GXC provides solutions enabled by our RF-photonics platform based on our proprietary 3D PIC technology. Our platform combines ultra low loss waveguides with fast modulators, switches, and more. By processing information with light, our chips offer ultra high speed, low latency, and low power consumption representing orders of magnitude improvement over traditional electronic architectures.

Who We Are

We started as a team of curious innovators working from an academic basement with the goal of co-design and optimization between fabrication, systems, and software to solve next generation communications challenges. Our team includes leading signal processing pioneers, photonics researchers, and semiconductor industry veterans.

Featured Capabilities

Advanced 3D Photonics

GXC’s photonics platform features the highest delay efficiency which enables long ultra-low loss integrated delays, high Q ring resonators, and large interferometric MZI meshes. Our planar waveguides with ultra-low optical propagation loss enable a plethora of passive photonic integrated circuits, such as splitters and combiners, filters, delay lines, and components for advanced modulation formats. We’ve designed the waveguides to utilize thin high-aspect ratio silicon nitride to minimize sidewall scattering and provide a dilute optical mode that can support very high waveguide intensities without inducing optical nonlinearities. 

We overcome the tradeoff between propagation loss and device footprint through our monolithic integration of ultra-low loss Si3N4 with crystalline silicon. Key to 3D integration of photonic waveguides is the highly efficient vertical couplers. The couplers allow two waveguides to be combined on a single platform. This in turn enables complex and efficient photonic devices, leveraging the ultra-low loss and high-power handling capabilities of Si3N4 waveguides while utilizing Si for compact routing and fast and efficient phase shifters.   

High Q Integrated Resonators

Integrated optical resonators are key building blocks for an ever-increasing range of applications including optical communications, sensing, and navigation. A challenge to today’s photonics integration is realizing circuits and functions that require ultralow loss waveguides on-chip while balancing the waveguide loss with device function and footprint. GXC’s advanced 3D photonics enable very high loaded Q resonators which require very low propagation loss enabled by Si3N4 waveguides. 

Additionally, monolithic integration with crystalline silicon waveguides enable complex integration with a wide variety of previously demonstrated active components developed in silicon and SiGe such as modulators, fast switches, and detectors.   

Interference Cancellation

Full duplex is the simultaneous use of adjacent and overlapping frequency bands for both transmit and receive signals. This has the potential of fully utilizing valuable RF spectrum. However, the co-location of the transmit and receive circuitry inside a transceiver node enables the transmit signal to leak into the receive path which buries the desired signal and saturates receiver circuitry such as the low noise amplifier (LNA) and analog to digital converter (ADC). 

Since the TX and RX signals utilize the same frequency, spectral filters do not help. Cancellation of this self-interference is a key technology in realizing 5G data rates and capabilities. Upconverting radio frequency (RF) signals to the optical domain for signal processing in a microwave photonic filter allows for support of large bandwidth due to the fractional bandwidth of the RF signals (MHz to GHz) relative to the optical carrier (THz). 

GXC has developed a novel photonic integrated circuit for fine control of both signal amplitude and phase which enables large cancellation depths. This strategy benefits from other notable advantages inherent in all photonic systems including robustness against electromagnetic interference (EMI), compatibility with all modulation formats, and reduced SWaP (size, weight, and power).

Technology FAQs

Frequently Asked Questions about our products and company.

Quite simply, a private cellular network is a standards-based cellular network that is fully contained within and managed by your enterprise.

The technology is the same and is based on the same standards. The difference is security, control, performance, and ownership. With the GXC network, since you own the network rather than the carrier, you make the decisions.

A private cellular network will enable you to reliably connect virtually unlimited numbers of new devices – handhelds, sensors, robots, and more – and have control and security over the entire ecosystem.

The primary differences are the reliability of the connections, data transfer, and depth of control over the network. Cellular is uniquely different from WiFi in the way that data transmissions are scheduled so that traffic on a private cellular network is always assured.

Your user data is only available to authorized users on the network. Network managers, the operations center, and GXC do not have access to your user data.

Its quite simple – a systems integrator (SI), selected by you or your distributor, will perform a site survey, mount the access points, install the server or server image in your rackspace, and you’ll be up and running in no time.

That’s completely up to you. Your IT department can manage the network, you can work with a managed service provider partner, or your distributor can provide a partner. We provide the tools, the portal, and the training, and you’re on your way!

Deliveries of the network will start in July of 2022.

No! Because you own the network, all the data used within the network is all covered. The enterprise is responsible for all the backhaul costs, the same as your WiFi and LAN networks are setup today.

You don’t! The GXC network utilizes a bit of spectrum designated as CBRS – the citizens broadband radio service, also known as Band 48 – which is free for anyone to use. Our platform automatically requests the local grants required to transmit and you’re ready to go.

There are currently hundreds of consumer devices available that operate in Band 48 (b48) including smartphones and tablets from all major manufacturers, Wi-Fi hotspots, and routers – and that list is constantly growing.

If it’s a Band 48-capable an unlocked device, scan to a QR-code that we provide, and your device will load a profile into the embedded SIM. If an embedded SIM isn’t available, we can provide physical SIM cards to plug into the device.