Search
Menu
PI Physik Instrumente - Space Qualified Steering 3-25 LW LB

Google Parent Comapny Unveils Silicon Photonics Chip

Facebook X LinkedIn Email
MOUNTAIN VIEW, Calif., March 5, 2025 — Through its X Development LLC business, Google has introduced the Taara chip, a silicon photonic chip that uses light to transmit high-speed data through the air. A blog post published by Taara general manager Mahesh Krishnaswamy last week said that the company has demonstrated the transmission of data at 10 Gbps over distance of 1 km using two Taara chips.
Developed by Google’s X Development business, the Taara chip is capable of transmitting data at up to 20 Gbps over the air at distances up to 20 km. Courtesy of X Development.
Developed by Google’s X Development business, the Taara chip is capable of transmitting data at up to 20 Gbps over the air at distances up to 20 km. Courtesy of X Development.
The device is the successor to the Taara Lightbridge, X Development’s first-generation system which used a system of mirrors, sensors, precision optics, and hardware to steer light. The technology was developed to transmit data without the use of optical fiber or crowded radio frequencies. The Taara chip scales the technology down from the size of a traffic light to the size of a fingernail.

While the Taara Lightbridge steers light physically, many of the mechanical components have been removed in the Taara chip to make way for a solid-state solution for automatic beam steering. The heart of the innovation, X Development said, is an optical phased array that steers, tracks, and corrects light with high levels of precision. Each chip contains hundreds of software-controlled light emitters that allow the manipulation of the light’s wavefront and directions. According to the company, the chip is capable of transmitting at speeds up to 20 Gbps at distances up to 20 km.

X Development’s team plans to extend both the chip’s range and capacity by creating an iteration with thousands of emitters. The team expects the next generation chip to be available in Taara’s next product launch in 2026.
Precision Glass & Optics - Complete Optical Solution HP 2025

Published: March 2025
Glossary
chip
1. A localized fracture at the end of a cleaved optical fiber or on a glass surface. 2. An integrated circuit.
semiconductor
A semiconductor is a type of material that has electrical conductivity between that of a conductor and an insulator. In other words, semiconductors have properties that are intermediate between metals (good conductors of electricity) and insulators (poor conductors of electricity). The conductivity of a semiconductor can be controlled and modified by factors such as temperature, impurities, or an applied electric field. The most common semiconductors are crystalline solids, and they are...
laser
A laser, which stands for "light amplification by stimulated emission of radiation," is a device that produces coherent and focused beams of light through the process of optical amplification based on the principles of quantum mechanics. Key features of lasers include: Stimulated emission: The operation of a laser is based on stimulated emission, a quantum phenomenon where atoms or molecules in an excited state release photons when they encounter other photons. This process leads to...
photonic integrated circuit
A photonic integrated circuit (PIC) is a compact and integrated device that incorporates multiple photonic components and functions on a single chip, similar to the way electronic integrated circuits (ICs) integrate various electronic components. The goal of a photonic integrated circuit is to manipulate and control light signals for applications in optical communication, sensing, signal processing, and other photonic technologies. Key points about photonic integrated circuits: Integration...
Businesschipsemiconductorfree space opticsCommunicationslaserphotonic integrated circuitsilicon photonicsGoogleX DevelopmentTaaraTaara LightbridgeAmericas

We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.