INTERNSHIP DETAILS

Optical Engineer Intern

CompanyLumentum
LocationSan Jose
Work ModeOn Site
PostedMarch 11, 2026
Internship Information
Core Responsibilities
The intern will perform optical simulations and modeling to support high-density interconnect module design, analyzing performance metrics like loss mechanisms and signal integrity. Responsibilities also include conducting hands-on laboratory testing, correlating model results with experimental data, and preparing technical documentation.
Internship Type
full time
Salary Range
$28 - $54
Company Size
3599
Visa Sponsorship
No
Language
English
Working Hours
40 hours
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About The Company
Lumentum (NASDAQ: LITE) is a global leader in optical and photonic technologies that power the networks and infrastructure behind AI, cloud computing, and next-generation communications. Built on decades of photonics innovation, Lumentum delivers high-performance lasers, modules, and optical subsystems that enable scalable, energy-efficient data center connectivity, advanced telecom networks, industrial manufacturing, and sensing applications. Headquartered in San Jose, California, the company operates R&D, manufacturing, and sales facilities worldwide.
About the Role

It's fun to work in a company where people truly BELIEVE in what they're doing!
We're committed to bringing passion and customer focus to the business.

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

Overview

Lumentum is seeking an Optical Module Design & Simulation Intern to support high-density interconnect module development for advanced optical communication systems.

This internship is designed as a conversion-track opportunity, intended to identify and develop high-potential candidates for potential full-time Optical Engineering roles in San Jose upon graduation (subject to business needs and performance).

You will contribute to real product development efforts, combining advanced optical modeling with hands-on laboratory validation to influence next-generation module designs.

This role is onsite in San Jose, California.

Responsibilities

As an intern, you will:

  • Perform optical simulations and modeling to support high-density interconnect module design
  • Analyze optical performance including loss mechanisms, coupling efficiency, and signal integrity
  • Develop and refine simulation models to support design optimization
  • Conduct hands-on laboratory testing and characterization of optical components and subsystems
  • Correlate modeling results with experimental data and propose design improvements
  • Collaborate with cross-functional engineering teams
  • Prepare technical documentation and present findings to senior engineers

You will be assigned meaningful technical ownership with structured mentorship from experienced optical engineers.

Minimum Qualifications

  • Currently pursuing a Bachelor's, Master’s or PhD degree in:
    • Optical Engineering
    • Physics
    • Electrical Engineering
    • Photonics or related field
  • Strong academic foundation in:
    • Laser fundamentals
    • Photodetectors
    • Fiber optic communication principles
    • Electromagnetic wave propagation or optical physics

Preferred Qualifications

  • Experience with optical simulation or modeling tools
  • Familiarity with optical alignment and characterization methods
  • Experience working in a research laboratory environment
  • Strong analytical and problem-solving skills
  • Ability to bridge theoretical modeling with experimental validation
  • Excellent written and verbal communication skills
  • Quick learner and can easily adapt to change

Conversion Opportunity

This internship aligns with Lumentum’s early career pipeline strategy. High-performing interns may be considered for future full-time Optical Engineering roles in San Jose upon graduation, based on performance and business needs.

Pay Range: $27.75 - 54.30/hour USD

Pay Range:

Disclaimer:

Final base salary for the successful candidate will depend on multiple factors, including but not limited to, job location, where work will be performed, qualifications, work history and relevant experience. With our continual goal of making Lumentum a best place to work for our employees, we strive to offer employees competitive total compensation packages, which may include annual bonus, commission for certain sales roles, equity, and health and welfare benefits.

Key Skills
Optical SimulationsOptical ModelingHigh-Density Interconnect Module DesignOptical Performance AnalysisSignal IntegrityLaboratory TestingCharacterizationData CorrelationDesign OptimizationLaser FundamentalsPhotodetectorsFiber Optic CommunicationElectromagnetic Wave PropagationOptical PhysicsAnalytical SkillsProblem-Solving
Categories
EngineeringScience & ResearchTechnologySoftware