OSA study guide
OSA · Work through your exam, one topic at a time.
The OSA Certified Professional Examination is a multiple-choice credential aimed at optical engineers, photonics technicians, laser specialists, and applied scientists who need to demonstrate working command of optics rather than academic theory alone. The exam is organized across seven domains: optics fundamentals, optical materials and components, optical system design, lasers and photonics, imaging and sensing, optical metrology and testing, and safety, standards, and professional practice. The OSA study guide has 7 sections and about 1,940 words.
01Optics Fundamentals
This domain tests whether you can move between ray, wave, and photon descriptions of light and apply first principles without hidden assumptions. Expect Snell's law, thin-lens imaging, Gaussian beams, two-beam interference, diffraction, and polarization.
266 words, about 1 min02Optical Materials and Components
This domain tests material selection and component behaviour: glasses, fused silica, crystals, polymers, thin-film coatings, filters, polarizers, waveplates, prisms, gratings, and beam splitters. You need to connect bulk properties to measured performance.
265 words, about 1 min03Optical System Design
This domain tests first-order layout, aperture definition, aberration control, image quality metrics, and tolerancing. The exam expects you to reason from stops and pupils to f-number, field, and diffraction-limited performance.
286 words, about 1 min04Lasers and Photonics
This domain tests laser gain, oscillation conditions, beam characterization, pulsed operation, and photonic detection. You should connect atomic transitions to measurable beam properties.
252 words, about 1 min05Imaging and Sensing
This domain tests how optical images become sampled, noisy, calibrated measurements. It covers detectors, camera parameters, resolution, radiometry, active sensing such as LiDAR, and spectroscopic or interferometric sensing.
293 words, about 1 min06Optical Metrology and Testing
This domain tests quantitative measurement of optical surfaces, wavefronts, and system performance. It includes interferometry, phase measurement, surface figure and roughness, MTF testing, calibration, and uncertainty.
284 words, about 1 min07Safety, Standards, and Professional Practice
This domain tests laser safety classification, exposure limits, controls, optical drawing standards, and professional documentation. The exam expects standards-literate decisions, not just power thresholds.
294 words, about 1 min