Photodigm is a company that designs, tests, and manufactures spatial and longitudinal mode distributed Bragg reflector (DBR) laser diodes. Its products include semiconductor lasers, gain chips, wavelength diodes, and direct-edge couplings. The company also provides engineering, on-site support, packaging, assembly, and other services. Photodigm caters to biomedical, spectroscopy, technology, scientific research, and other sectors.