This proposal describes integrated circuit techniques to perform built-in-test (BIT) on general fiber links (single-mode, multi-mode and at any wavelength). These circuits are packaged alongside already available transceiver component to add BIT functionality. This proposal also describes the integration of these techniques into an 850 nm VCSEL array parallel transceiver module. The overall goal of Phase I is to investigate BIT test methods, BIT circuit functions and the integration of these circuits into components suitable for avionic applications. Benefit The overall objective of this project is twofold: 1) investigate the implementation built in test (BIT) functions that isolate the fiber fault location along the fiber path that includes intra-box and inter-box sections in avionic systems, and 2) examine methods of constructing modules that perform these BIT functions. The BIT function may be housed in a separate module from the transceiver module or integrated within the transceiver module. The BIT functions must operate in conjunction with existing module BIT functions that monitor the overall module health. The final result should be a turn-key solution that isolates a problem anywhere along the data path; including the electrical inputs to the transmit module, the transmit module, intra-box fiber, cable plant fiber and the receiver module. This proposal has a strong letter of support from a major avionic fiber system integrator - Lockheed Martin Tactical Systems, Eagan, MN Keywords Multi-mode Fiber, VCSEL, built-in-test, single-mode fiber, Photonic
