About

About Quantum Devices About Quantum Devices, Inc. Quantum Devices designs and manufactures high-performance optical encoders and precision silicon photodiodes in the USA for demanding industrial and commercial motion control applications. Our encoders are used in medical equipment, robotics, servo motors, AGVs, and other precision motion systems where accuracy and reliability are critical. For over 25 years, we have produced durable, high-quality encoders while developing new solutions to meet evolving industry needs. Our portfolio includes optical incremental encoders with line counts up to 20,000 ppr, sine/cosine outputs, and commutation capabilities, alongside custom silicon photodiodes optimized for high sensitivity, speed, and reliability. Mechanical options range from compact, low-profile modular designs to robust encoders with integral bearings and IP66-rated enclosures for harsh environments. At MD&M, Quantum Devices will showcase hands-on encoder and photodiode samples, with experienced sales engineers available to discuss technical details and application-specific solutions. Quantum Devices designs and manufactures high-performance optical encoders and precision silicon photodiodes in the USA, supporting advanced motion control and sensing applications across robotics, medical devices, and industrial automation. Our solutions are trusted in robotic systems, servo motors, AGVs/AMRs, and other precision motion platforms where accuracy, repeatability, and reliability are critical to performance. With over 25 years of experience, Quantum Devices has built a reputation for delivering durable, high-quality encoder solutions while continuously innovating to meet evolving system requirements. Our portfolio includes optical incremental encoders with line counts up to 20,000 pulses per revolution (ppr), offering sine/cosine outputs for high-resolution feedback and commutation capabilities for motor control. These features enable precise positioning and smooth motion control in even the most demanding robotic applications. In addition to encoders, Quantum Devices develops custom silicon photodiodes optimized for high sensitivity, fast response, and long-term stability. These photodiodes support a wide range of sensing applications, including optical feedback systems, medical instrumentation, and industrial detection systems, making them ideal for integration into next-generation robotic and automation platforms. We offer a broad range of mechanical configurations to meet diverse design requirements, including compact, low-profile modular encoders for space-constrained applications, as well as robust designs with integral bearings and IP66-rated enclosures for harsh or washdown environments. Our engineering team works closely with customers to tailor solutions for seamless integration, ensuring optimal performance in real-world conditions. At Robotics Summit & DeviceTalks Boston 2026, Quantum Devices will showcase hands-on encoder and photodiode solutions, with experienced sales engineers available to discuss technical details, integration strategies, and application-specific challenges. Whether you are developing advanced robotic systems or precision medical devices, Quantum Devices delivers the sensing and motion feedback solutions needed to drive innovation. Quantum Devices designs and manufactures high-performance optical encoders and precision silicon photodiodes in the USA for demanding industrial and commercial motion control applications. Our encoders are used in medical equipment, robotics, servo motors, AGVs, and other precision motion systems where accuracy and reliability are critical. For over 25 years, we have produced durable, high-quality encoders while developing new solutions to meet evolving industry needs. Our portfolio includes optical incremental encoders with line counts up to 20,000 ppr, sine/cosine outputs, and commutation capabilities, alongside custom silicon photodiodes optimized for high sensitivity, speed, and reliability. Mechanical options range from compact, low-profile modular designs to robust encoders with integral bearings and IP66-rated enclosures for harsh environments. At MD&M, Quantum Devices will showcase hands-on encoder and photodiode samples, with experienced sales engineers available to discuss technical details and application-specific solutions.