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Principal Photonics Design Engineer

Job in Fremont, Alameda County, California, 94537, USA
Listing for: Coherent Corp.
Full Time position
Listed on 2026-11-05
Job specializations:
  • Engineering
    Electronics Engineer, Electrical Engineering, Systems Engineer
Salary/Wage Range or Industry Benchmark: 140000 - 210000 USD Yearly USD 140000.00 210000.00 YEAR
Job Description & How to Apply Below
Job Description
  • Develop new photonic device and PIC concepts for next-generation optical interconnects and high-speed communication systems.
  • Design and optimize high-speed photonic components and subsystems, with applications targeting technologies such as 400G-per-lane links and co-packaged optics.
  • Work on the interaction between photonic devices and their electrical/RF interfaces, including high-speed modulators, photodetectors, transmission lines, electrodes, and interconnects.
  • Develop WDM building blocks and architectures, including wavelength filters, multiplexers/demultiplexers, resonant devices, and other wavelength-selective components.
  • Translate system-level requirements into practical photonic device and circuit specifications.
  • Evaluate design tradeoffs involving bandwidth, optical loss, power consumption, footprint, manufacturability, and scalability.
  • Use optical, electromagnetic, and RF simulation tools to model and optimize device performance.
  • Develop and tape out complex PICs using foundry PDKs and established silicon photonics design flows.
  • Work with foundry and fabrication teams to understand process limitations and incorporate manufacturing considerations into device designs.
  • Support experimental characterization and use measurement results to improve future designs.
  • Collaborate with electrical and packaging engineers on advanced optical-electrical integration and packaging challenges.
  • Contribute to the development of new design methodologies, simulation workflows, and reusable photonic building blocks.
  • Help identify and explore new device concepts and technologies that can enable future generations of optical interconnects.
Primary

Duties & Responsibilities
  • Develop new photonic device and PIC concepts for next-generation optical interconnects and high-speed communication systems.
  • Design and optimize high-speed photonic components and subsystems, with applications targeting technologies such as 400G-per-lane links and co-packaged optics.
  • Work on the interaction between photonic devices and their electrical/RF interfaces, including high-speed modulators, photodetectors, transmission lines, electrodes, and interconnects.
  • Develop WDM building blocks and architectures, including wavelength filters, multiplexers/demultiplexers, resonant devices, and other wavelength-selective components.
  • Translate system-level requirements into practical photonic device and circuit specifications.
  • Evaluate design tradeoffs involving bandwidth, optical loss, power consumption, footprint, manufacturability, and scalability.
  • Use optical, electromagnetic, and RF simulation tools to model and optimize device performance.
  • Develop and tape out complex PICs using foundry PDKs and established silicon photonics design flows.
  • Work with foundry and fabrication teams to understand process limitations and incorporate manufacturing considerations into device designs.
  • Support experimental characterization and use measurement results to improve future designs.
  • Collaborate with electrical and packaging engineers on advanced optical-electrical integration and packaging challenges.
  • Contribute to the development of new design methodologies, simulation workflows, and reusable photonic building blocks.
  • Help identify and explore new device concepts and technologies that can enable future generations of optical interconnects.
Education & Experience
  • PhD or Master’s degree in Electrical Engineering, Photonics, Applied Physics, Optics, or a related field.
  • Significant experience in integrated photonics or silicon photonics design and development.
  • Experience designing high-speed electro-optic devices and their associated RF structures.
  • Experience with electromagnetic and RF simulation tools such as HFSS, CST, ADS, or similar.
  • Experience with…
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