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This article presents the design and experimental validation of an analog optical transmission system that illustrates the continuity between early fiber-optic communication links and modern optical interconnect technologies. The system implements an RF-over-fiber architecture in which a baseband video signal is encoded using frequency modulation (FM) on a radio-frequency carrier centered near 750 MHz. The modulated RF signal directly drives a semiconductor laser, producing optical intensity modulation that propagates through multimode optical fiber. At the receiver, the optical signal is detected by a photodiode and recovered using a superheterodyne architecture that down-converts the RF carrier to a 70 MHz intermediate frequency for stable FM demodulation. The prototype demonstrates reliable analog video transmission over kilometer-scale fiber links with good linearity and signal fidelity. Operating the FM modulator at a high RF carrier frequency improves carrier-to-noise ratio and reduces distortion caused by parasitic effects, enabling robust demodulation using techniques common in microwave and satellite communication systems. Beyond the experimental implementation, the article places this architecture in a broader technological context. It shows that the same fundamental transmission mechanism used in the prototype—electrical signal modulation, optical intensity modulation, fiber propagation, and photodiode detection—remains central to modern optical interconnect systems. Contemporary technologies such as silicon photonics, PAM4 modulation, and co-packaged optics primarily represent advances in integration scale, bandwidth, and signal processing rather than changes in the underlying optical transport physics. By highlighting the architectural continuity between early analog optical links and present-day data-center optical interconnects, the work provides both an engineering reference and historical perspective on the evolution of optical communication systems.