Course Description
This Certified Fiber Optic Technician (CFOT) course is an essential program for those working in the fiber optics field. The program is certified by the FOA and is designed to equip individuals with the foundational knowledge and practical skills required for various fiber optics applications. The curriculum covers a wide range of topics, from system design to installation and operation, and is applicable to both outdoor and indoor environments, including premises and manufacturing settings.
Course Objectives
Upon completion of this course, students will be able to explain and demonstrate the following concepts and skills:
- Fiber and Cable Types: Distinguish between various types of optical fibers and their corresponding cable constructions.
- Information Transmission: Understand how data is transmitted using different modulation techniques, such as FM, AM, and Pulse Coded Modulation (PCM).
- Light Propagation: Explain how light travels through a fiber optic cable.
- Application-Specific Fibers: Understand the different applications of both single-mode and multimode fibers.
- Connectors and Patchcords: Identify various types of fiber optic connectors and patchcords.
- Optical Principles: Define and explain core concepts such as Numerical Aperture, Attenuation, and Bandwidth.
- Fiber Joining Techniques: Demonstrate the proper techniques for joining fibers using both connectors and splices, including cleaving and microscopic inspection.
- Testing Equipment: Identify and use standard fiber optic test equipment.
- Fiber Optic Applications: Recognize the diverse applications of fiber optics in various industries.
Terminal Objectives
At the end of the course, students will be able to independently perform the following tasks:
- Cable Preparation: Successfully prepare fiber optic cables for termination.
- System Troubleshooting: Effectively troubleshoot, test, and document fiber optic systems.
- Termination: Competently terminate connectors and create both fusion and mechanical splices, adhering to industry standards.
- Certification: Pass the official Certified Fiber Optic Technician (CFOT) examination.
- Job Readiness: Apply the acquired knowledge and skills directly in a professional work environment.
Subjects Covered
Foundational Concepts
- History and Industry Overview: A historical overview of fiber optics and its integration into various sectors like telecommunications, military, and utilities.
- Signal Transmission: Introduction to basic system concepts, including analog and digital signals and their transmission via FM, AM, and PCM.
- Bandwidth and Data Rates: Understanding of bandwidth, data rates (bps), and Baud rate, as well as multiplexing techniques like Time, Frequency, and Wavelength Division Multiplexing.
- Optical Power and Loss: Calculation of decibels and optical power loss, including the development of a loss budget.
Technical Principles
- Advantages of Fiber Optics: A discussion of the benefits of fiber optics, such as high bandwidth and security.
- Light Sources: Examination of light sources like LEDs and lasers, and their role in light propagation.
- Fiber Characteristics: Detailed study of fiber components (core and cladding), including their sizes and classifications. The course also covers different refractive index profiles (step and graded index).
- Physical Properties and Safety: An exploration of fiber tensile strength, bend radius, and essential safety protocols for handling fibers and lasers.
- Cable Types: A comprehensive look at various cable types, including simplex, duplex, multifiber, and hybrid cables, as well as installation methods for specialized cables like ADSS and OPGW.
Advanced Topics
- Connectors and Splicing: A deep dive into connector types, manual termination methods, and the principles of fusion and mechanical splicing.
- Testing and Restoration: Use of an Optical Time Domain Reflectometer (OTDR) for system analysis and discussion of immediate system restoration procedures.
- Specialized Applications: An introduction to Plastic Optical Fibers (POF) for data and lighting, as well as the use of optical sensors in industrial controls for various measurements like temperature, pressure, and position.
Laboratory Practice
The hands-on labs are designed to reinforce theoretical knowledge and build practical skills. Students will complete the following exercises:
- Lab 1: Cable Preparation: Safely strip and prepare various fiber optic cables.
- Lab 2: Connector Installation: Install pigtails, splice-on connectors (SOCs), or field-installable connectors according to industry standards.
- Lab 3: Fiber Handling: Practice the correct techniques for handling, cleaning, and cleaving optical fibers.
- Lab 4: Fusion Splicing: Use a fusion splicer to join fiber optic cables.
- Lab 5: Inspection: Perform microscopic inspection of fiber ends using both hand and video scopes.
- Lab 6: Troubleshooting: Utilize a Visual Fault Locator (VFL) to identify and locate common fiber issues.
- Lab 7: Power Measurement: Conduct loss analysis using a Light Source and Power Meter (OLTS).
- Lab 8: OTDR Analysis: Use an OTDR to measure cable length and identify physical issues such as connectors, splices, and macro bends.
