PHOTONICS
Data Signals Intelligence
The Data Age is Here
KEY DIFFERENTIATORS & COMPETITIVE ADVANTAGES

TUNABLE PLATFORM OPTIMIZED FOR ANALOG & SENSING SOLUTIONS
Platform & internal know-how provides a functioning bedrock for fast-prototyping
Transition from prototype to fab transfer faster than competition in Analog Comms, Signal Processing, Sensing & Data Compute
Technology uniquely developed from self-interference calculations and signal extraction

UNMATCHED FUNCTIONALITY PER CHIP
Innovatively pack high number of functional components onto each retical, resulting in a high performance, multi-use chips
In-house end-to-end prototyping capability ensures consistency & reliability
Sage design decisions resulting in ultra low loss (<0.4dB/m) & noise output

ENTERPRISE-GRADE PDK LIBRARY
Internal know-how out of Motorola and Intel fabs result in best-in-class foundry processes
Module-level process optimization at every step of the process
Built on standard Soitec SOIs for ease of production
ADVANCED 3D PHOTONICS PLATFORMS: SiN + c-SI
GXC Photonics combines high-performance ULL SiN waveguides with the rich capabilities of crystalline silicon in a monolithic platform enabling high fidelity applications

- Combines Si waveguide layer (2.2dB/cm) with an
ultra-low-loss Si3 N4 waveguide layer (0.016dB/cm) - GXC Platform when compared to Si3 N4 -only
platforms:
- > 10X speed improvement (<25μsec
- > 10X die size reduction (30μm bends)
- > 7X reduced power consumption (47mW @ Vπ)
GXC PHOTONICS’ UNIQUE SOLUTION ADDRESSES GLOBAL PROBLEMS
PROBLEM

System OEMs must work with multiple agents to satisfy demands of products they wish
to commercialize

Wafer manufacturers take many months to deliver prototypes

Presented system designs are difficult to instantiate efficiently, cost effectively and within acceptable foundry yields

Few teams exist capable of designing & delivering photonic-based systems
GXC PHOTONICS SOLUTION

End-to-end turnkey system delivery at pace

Smaller, efficient, feature-rich units

Technology vertically integrated by a single provider

Rapid prototyping drives faster time-to-production
INTERNAL CAPABILITY PROVIDES CUSTOMERS WITH TURNKEY SOLUTION
Unrivalled Vertical Integration from Prototyping to Fab Transfer
PROCESS & DEVICE INNOVATION
- Defense-focused
- World-class product engineers & PIC designers
- Adaptable & tunable GXC Photonics Platform
- System specification
- Ultra low loss waveguides
- Non-volatile optical switch (FLOW)
- Photonic wire bond
- High Q filters and delay lines
- Self interference cancellation
- Analog switches
- Optical neural net
DESIGN & PIC MANUFACTURING
- Uniquely combine RF, Optics & Mechanical components
- Rapid prototyping in 8-12 weeks vs Industry 40-65 weeks
- Designed to accommodate efficient fab processes and high-yielding techniques
ADVANCED PACKAGING
- 3D packaging
- RF compatible
- Ultra low loss waveguides
- Low noise
- Optimized for linear & non-linear
elements
SYSTEM INTEGRATION & TESTING
- Validated transfer to production capability
- Formally scoped & validated by TSI Semi & SkyWater
- Skilled team capable of integrating entire modules with multiple
functionalities - Turnkey operation




GXC PHOTONICS’ BEST-IN-CLASS PRODUCTS FOR ZERO-FAULT-TOLERANCE MARKETS

DEFENSE

AVIATION

INDUSTRY 4.0

QUANTUM COMPUTING

AUTOMATED VEHICLES

BIOMEDICINE
APPLICATIONS IMPROVED BY GXC PHOTONICS
HIGH POWERED SENSING
Powered by: Compact High Q Ring Resonator


Biosensors

Test & Measurement

Low-SWAP gyros
SIGNAL PROCESSING, ANALOG COMMS & DATA COMPUTE
Powered by: Ultra Low-Loss Switchable Waveguide Platforms


Low-SWAP phased-array RADAR

Optical FIR filters & true time delays

Optical and Quantum Compute
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.