About Core & Cladding
FOA knowledge, built for real field work.
This academy starts from a published, author-owned text and structures it for certification study, module by module, credential by credential.
The mission
Core & Cladding exists to give fiber optics technicians and installers a certification path that respects both the material and their time. Every lesson traces back to a real chapter, a real explanation, and a real field practice from David Osisek's guide.
Lessons are structured around the FOA's published Knowledge, Skills & Abilities categories, so studying here maps directly to what certification exams assess.
Every concept lesson is adapted directly from David Osisek's published guide, chapter by chapter.
Every module pairs book-derived concept teaching with a field skill lesson grounded in real workflow and failure analysis.
This is Phase 1: the curriculum and roadmap site. Login, video playback, and payments are deliberately not part of this release.
The book
Design placeholder, not the actual book cover
Fiber Optics: A Comprehensive Guide
by David Osisek
The book covers fiber optics broadly, starting with the underlying theory of how light travels through a fiber core, moving through the components and hardware technicians handle daily, and finishing in field practice: installation, termination, splicing, testing, and troubleshooting.
The full published table of contents isn't reproduced here on purpose, so this description stays general. What's concrete: David Osisek adapts the book's structure and explanations directly into the three-part lesson model used across every certification track.
The book stays the source of truth. The academy's job is to turn it into something you can study toward a specific exam.
The author