Laser Test Engineer - Optical Solutions

Molex is a global leader in the optical industry, renowned for delivering high-performance, field-proven wavelength management solutions.

Our expertise spans components, modules, and integrated line-cards, with a strong focus on innovation, miniaturization, and manufacturing automation.

Our advanced optical, mechanical, electrical, and software design capabilities support the evolving needs of high-density, high-bandwidth, and flexible optical networks across telecom, datacom, hyperscale datacenters, artificial intelligence, and supercomputing.

The Laser Test Engineer will own the measurement and test-automation stack for laser diode or packed LD performance validation: LIV, spectrum, kink behavior, FBG interactions, RIN/noise, and back-reflection sensitivity.

Builds fixtures and methods that are repeatable, calibrated, and production-scalable.

What You Will Do



* Develop and maintain test methods for LIV, wavelength/spectrum, kink detection, RIN PSD, far-field divergence, and back-reflection sensitivity across temperature for III-V edge-emitter lasers (EEL), as well as in fiber-coupled packages


* Design fixtures for FBG interaction tests (lock range, pulling, stability) and for ORL sweeps with calibrated reflectance


* Scope out and procure life test racks for high-power active devices and manage life test data


* Create automated test scripts (Python/LabVIEW/Matlab) and data pipelines for raw trace capture and report generation


* Define measurement uncertainty budgets and calibration plans; ensure traceability of key instruments


* Support incoming inspection, engineering characterization, and production test debug


* Partner with reliability and design teams to root-cause noise/kink/instability issues and verify fixes

Who You Are (Basic Qualifications)



* BS/MS in EE/Optics/Physics or related; 3+ years in laser/photonic test engineering (or equivalent).


* Experience hands-on skills with OSA, wavemeter, power meters, optical elements, photodiodes/TIAs, far field, spectrum analyzers, thermal control and life test equipment


* Experience with LIV, far-field divergence characterization of laser diodes


* Experience controlling back-reflection and polarization effects in optical setups (circulators, isolators, APC connectors)


* Experience translating system-level EDFA requirements into testable module-level specifications


* Experience scripting/automation ability for data acquisition and analysis.

What Will Put You Ahead



* Experience with laser modules testing


* Experience with PM fiber handling, PER testing, and polarization stability characterization


* Familiarity with manufacturing test development and SPC/guard-banding

For this role, we anticipate paying $120,000 - $220,000 per year.

This role is eligible for variable pay, issued as a monetary bonus or in another form.

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