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POET Technologies Inc., the designer and developer of the POET Optical Interposer (shown here) and Photonic Integrated Circuits (PICs) for the data center and tele-communication markets, announced that it has extended the Optical Interposer into new applications and markets with a fully-integrated, multiplexed light-source for optical computing chipsets and sensing applications, named LightBar-C.

The POET Optical Interposer platform has been extended and validated with the intrinsic features to support Conventional Band (C-band) and Long Band (L-band) lasers that produce light in a frequency range of 1530nm to 1625nm. POET has designed, developed and demonstrated cooled lasers for the Optical Interposer platform with up to 90mW of power operating at room temperature. In addition, the Company has designed and demonstrated a Dense Wavelength Division Multiplexer (DWDM) embedded in the Optical Interposer waveguide layer that allows channel spacings of 200GHz, providing the high density and broadband requirements needed for high-performance optical sensing and Co-Packaged Optics (CPO) applications, such as optical computing chipsets for Artificial Intelligence.

The Company’s first product to incorporate all of these features is the POET LightBar-C, which includes integrated spot-size converters that minimize coupling losses and increase power efficiency of components, such as multiplexers and detectors. The product provides low-loss fiber and free-space coupling, all specifically developed for highly integrated solutions within the C-band frequencies. The LightBar-C also uses a versatile and integrated laser source with multiple wavelengths (from 2 up to 8) multiplexed in the C-Band.

The optical bandwidth in the C-band is in the “eye-safe” region, which makes it ideal for free-space sensing applications. Consequently, C-band light solutions are expected to be foundational to the next generation of lidar solutions where high sensitivity, high power, reduced atmospheric influence and eye safety are presumed to be essential requirements.

As with previously announced Optical Interposer-based solutions, POET’s unique method of hybrid integration enables products with small form-factors and high performance. POET’s wafer-scale hybrid integration approach simplifies the manufacturing, assembly and testing of the passively assembled optical sub-system while simultaneously maximizing power efficiency with reduced coupling losses through the complete link.  

The extensibility to the C-band frequency range comprised of 15xx wavelengths of light further exemplifies the value of the Company’s hybrid platform approach, as the same fundamental Optical Interposer manufacturing process and design kits can be utilized to deliver solutions across a wide range of applications.

Labels: POET Technologies,optics,optical sensing,LightBar-C,Optical Interposer

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