AGORACOM Small-cap Investor Relations Blog

Enables the World’s Lowest-Cost and Smallest 100G CWDM4 Optical Engine

• Completed and tested its high-speed Directly Modulated Laser (DML) designs using a distributed feedback (DFB) structure and successfully “flip-chipped” these lasers onto the Company’s Optical Interposer platform, which also incorporates several other industry-first accomplishments.
• flip-chip assembly technique enables a true single-chip, fully integrated Optical Engine to be produced at wafer-scale, resulting in the lowest-cost, smallest-size 100G CWDM4 Optical Engine with a form factor of 9mm x 6mm, while including banks of four lasers, four monitor photodiodes, four high speed photodiodes, a multiplexer, demultiplexer, taps for power monitoring and features supporting a self-aligned fiber attach unit.

TORONTO, Dec. 17, 2020 — POET Technologies Inc. (“POET” or the “Company”) (TSX Venture: PTK; OTCQX: POETF) the designer and developer of the POET Optical Interposer™ and Photonic Integrated Circuits (PICs) for the data center and tele-communication markets, announced today that it has completed and tested its high-speed Directly Modulated Laser (DML) designs using a distributed feedback (DFB) structure and successfully “flip-chipped” these lasers onto the Company’s Optical Interposer platform, which also incorporates several other industry-first accomplishments.

The flip-chip assembly technique enables a true single-chip, fully integrated Optical Engine to be produced at wafer-scale, resulting in the lowest-cost, smallest-size 100G CWDM4 Optical Engine with a form factor of 9mm x 6mm, while including banks of four lasers, four monitor photodiodes, four high speed photodiodes, a multiplexer, demultiplexer, taps for power monitoring and features supporting a self-aligned fiber attach unit.

“Without being able to flip-chip the lasers, we would be unable to assemble Optical Engines at wafer-scale, which is the single most important driver of cost. Wafer-scale processing enables the production of high unit volumes at low incremental costs, ultimately allowing us to reduce the cost of building photonics devices by 25% to 40% compared to conventional approaches,” stated Suresh Venkatesan, Chairman and CEO of POET. “Following our successful demonstration of this flip-chip assembly process, POET can now readily incorporate these lasers and other active devices into derivative optical engine configurations, supporting data communications applications such as 200G CWDM4, 100G CWDM6, and 100G LR4, telecom applications such as 5G, as well as other applications that could benefit from the small size and low cost of our platform technology.”

Four DML lasers are commonly used in 100G transceiver applications, a key initial target market for POET’s Optical Interposer, enabling high speed optical communication in the 2 to 10 km range. Operating at speeds of 25 gigabits per second (GPS), POET’s family of four DML lasers of different wavelengths are the first known commercial 25G DFB-type DML lasers to utilize a flip-chip process to passively align and bond to electronic and optical circuitry on the interposer platform, while maintaining optimal performance. Given the estimated total available market (TAM) for 100G transceivers of approximately $2.5 billion, POET believes that its recently formed JV company, SuperPhotonics Xiamen, can achieve annual revenue of over $100 million within this single market segment in the 2024-25 time frame.

Flip-chip assembly of electronic devices on circuit boards, MEMS (Microelectromechanical Systems) and other devices is an advanced manufacturing process for achieving electrical interconnect (often referred to as 2-D, 2.5-D and 3-D) in semiconductor architectures. To achieve the benefits of the planar architecture of POET’s Optical Interposer that facilitates wafer-scale processing, flip-chipping of lasers was an important development milestone, requiring POET to demonstrate that it could simultaneously optimize the RF (radio frequency) performance of the flip-chipped DML laser on interposer while preserving a low RIN (relative intensity noise) measurement both before and after assembly.   RF performance relates to the quality and power of the electrical signals, while RIN is a measure of stability of the lasers that are assembled on the Interposer.

“Beyond The Press Release”

POET Technologies goes “Beyond The Press Release” to discuss today’s news. Shareholders and other interested parties are encouraged to check back on this link before market open on the morning of Tuesday December 22, 2020.

About POET Technologies Inc.
POET Technologies is a design and development company offering integration solutions based on the POET Optical Interposer™ a novel platform that allows the seamless integration of electronic and photonic devices into a single multi-chip module using advanced wafer-level semiconductor manufacturing techniques and packaging methods. POET’s Optical Interposer eliminates costly components and labor-intensive assembly, alignment, burn-in and testing methods employed in conventional photonics. The cost-efficient integration scheme and scalability of the POET Optical Interposer brings value to any device or system that integrates electronics and photonics, including some of the highest growth areas of computing, such as Artificial Intelligence (AI), the Internet of Things (IoT), autonomous vehicles and high-speed networking for cloud service providers and data centers. POET is headquartered in Toronto, with operations in Allentown, PA and Singapore. More information may be obtained at www.poet-technologies.com .

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