Optical Coherent System Engineer

Job Description Nokia is seeking a Coherent Optical Systems Engineer to join our Optical Systems Group (OSG). The engineer will be responsible for contributing to the design, characterization, and development of leading coherent optical transceivers based on Infinera's next-generation coherent photonic integrated circuit (PIC) and digital signal processor (DSP) technologies. The ideal candidate should be prepared to work with early prototype PIC, DSP, and analog ASIC hardware; to perform digital-optical integration, develop robust calibration and controls methodologies, and carry out performance characterization. Performance characterization will include transceiver SNR, OSNR tolerance, sensitivity studies, etc. OSG works closely with many parts of the company and the candidate should anticipate frequent interactions with the DSP, PIC, analog ASIC, and systems engineering teams. A key component of this role is the ability to understand and make tradeoffs between optical, electrical, and digital capabilities, in order to optimize the overall system performance. How You Will Contribute And What You Will Learn Digital-optical integration of next-generation coherent optical transceiversDevelopment of calibration and controls algorithms to maximize system level performancePerformance characterization of coherent pluggable transceivers, which will include detailed experimental validation of the constituent sub-components that comprise the pluggable, such as the analog, controls, and DSP ASICsActive member of the cross-functional product development team involving software, electronics, optics, and test Key Skills And Experience Ph.D. in Electrical Engineering or Applied Physics with experience in optical communications, photonics, high-speed electronics or systemsNew Ph.D. graduates, as well as experienced professionals, are encouraged to apply.Fundamental understanding of optical communication systems, DWDM transmission systems, fiber transmission penalties, photonic integrated components, electronic (integrated) circuits, and signal analysis and processingHands-on experience working with system-level optical communication hardware and componentsExtensive understanding of coherent communications systems, including experience with QPSK, 16QAM, and 64QAM, as well as coding and forward error correction algorithmsExperience characterizing high-speed RF and mm-wave interconnects, amplifiers, and componentsCharacterization of RF/mm-wave systems, such as S parameter measurements, jitter measurements, ADC/DAC performance and ENOBHands-on experience with high-speed optical and electrical tests, measurement equipment control, and data acquisitionProgramming experience in Matlab, Python, VB.net, or C desired About Us Advancing connectivity to secure a brighter world. Nokia is a global leader in connectivity for the AI era. With expertise across fixed, mobile and transport networks, powered by the innovation of Nokia Bell Labs, we’re advancing connectivity to secure a brighter world. Learn more about life at Nokia . Our recruitment process We act inclusively and respect the uniqueness of people. Our employment decisions are made regardless of race, color, national or ethnic origin, religion, gender, sexual orientation, gender identity or expression, age, marital status, disability, protected veteran status or other characteristics protected by law. We are committed to a culture of inclusion built upon our core value of respect. If you’re interested in this role but don’t meet every listed requirement, we still encourage you to apply. Unique backgrounds, perspectives, and experiences enrich our teams, and you may be just the right candidate for this or another opportunity. The length of the recruitment process may vary depending on the specific role's requirements. We strive to ensure a smooth and inclusive experience for all candidates. Discover more about the recruitment process at Nokia .