This laboratory training manual on laser communications and fiber optics may be used in a general technology-communications course for ninth graders. Upon completion of this exercise, students achieve the following goals: match concepts with laser communication system parts; explain advantages of fiber optic cable over conventional copper wire; and explain the process of how laser communications and fiber optics work. The module contains objectives, methodology, activities, resources, and evaluation. The laboratory manual contains the following sections: introduction; activity length; evaluation; equipment; steps of procedure; the microphone (encoding); the laser and laser beam (transmitting); laser beam transmission (signal propagating); telephone wire versus fiber optic cable; the receiver box (receiving); and the speaker (decoding). Evaluation consists of the laser communications and fiber optics worksheet, a 15-question attachment reflecting laboratory manual information. (NLA)