State award is funding a new germanium deposition reactor for building the next generation of photonic integrated circuits.
By: Dorothy Ryan
"Researchers at Lincoln Laboratory have been using silicon and compound semiconductor substrates to build photonic integrated circuits, or PICs, that enable devices such as optical communication receivers, wideband ladar transmitters, interconnects for trapped-ion quantum computers, inertial sensors, and microwave signal processors. Now, a recently awarded state grant will fund a germanium deposition reactor that will allow the researchers to exploit germanium as a key optoelectronic material in the fabrication of PICs operating at nontraditional wavelengths and under harsh environmental conditions.
"Photonic integrated circuits are in demand for routing the enormous volume of traffic passing through data centers today. In addition, high-speed, reliable photonic circuits that lessen systems' electrical power requirements can improve the performance of quantum and all-optical computing systems, as well as the throughput of the advanced microprocessors embedded in highly sensitive sensors and increasingly capable autonomous vehicles.
"...The improved in-house capabilities that the reactor will bring to the Microelectronics Laboratory will also support innovations that Lincoln Laboratory is developing, for example, low-size, low-weight, and low-power inertial navigation sensors. Currently, the laboratory has to outsource the deposition of germanium on silicon PICs that require such deposition for some of the systems under development. The new germanium reactor will allow this deposition to be performed in-house to facilitate reduced fabrication time for next-generation photonic integrated circuits.
"...Massachusetts Governor Charlie Baker and Secretary of Housing and Economic Development Jay Ash presented the $1.9 million grant award to Lincoln Laboratory to celebrate National Manufacturing Day earlier this fall. It was one of seven grants awarded this year under the Massachusetts Manufacturing Innovation Initiative (M2I2) to support infrastructure improvements that will enable research and development leading to the manufacturing of advanced functional fabrics, integrated photonics, robotics, and flexible hybrid electronics.
"These awards will ensure the Commonwealth remains a leader in advanced manufacturing to spur job growth and train students for valuable career opportunities," Baker said.
"The M2I2 was established to facilitate Massachusetts' participation in the Manufacturing USAprogram, a network of regional institutes, each with a distinct technology focus, whose member organizations collaborate to leverage existing resources, to foster education, and to promote manufacturing innovation and commercialization. Currently, nine institutes with main offices in cities across the country are connecting member organizations from academia, industry, and the research community.
"Lincoln Laboratory has also become a member of AIM Photonics (American Institute for Manufacturing Integrated Photonics), a Manufacturing USA institute headquartered in Rochester, New York. The M2I2 grant will accelerate Lincoln Laboratory's involvement with AIM Photonics through advanced process development, internship and apprenticeship opportunities, and engagement with companies in Massachusetts and throughout the nation..."
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