In the context of optical connections, it is important to ensure low Insertion Loss (IL), while keeping the connectors clean. Micro-contaminants on the surface of the fiber core are sufficient to create optical losses greater than 1dB and can also prevent signal communication. Moreover, with high optical power signals, the micro-contaminants on the fiber surface become incandescent and can damage the fiber itself causing a high and permanent optical loss. For these reasons, it is important to inspect the connector optical fiber surfaces, in order to understand the reasons for any abnormal optical loss. Diamond provides microscopic visualization tool kits that include a power meter function. The Diamond microscopes kits meet today’s requirements for safety, reliability and quality, and offer the first handheld, easy-to-use field inspection tool and optical power meter (OPM) integrated solution.