Hoʻokumu kūʻokoʻa ʻo Rofea i ka photodetector integrated photodiode a me ka haʻahaʻa leo amplifier circuit, ʻoiai e hāʻawi ana i nā ʻano huahana like ʻole, no nā mea hoʻohana noiʻi ʻepekema Hāʻawi i ka lawelawe hoʻoponopono huahana maikaʻi, kākoʻo ʻenehana a me ka lawelawe maʻalahi ma hope o ke kūʻai aku. Aia ka laina huahana o kēia manawa: ka mea nānā kiʻi hōʻailona analog me ka hoʻonui, loaʻa i ka photodetector hiki ke hoʻololi, kiʻi kiʻi wikiwiki kiʻekiʻe, High Speed InGaAs Photodetector, ʻike maka hau hau (APD), ʻike kaulike, Low Noise Photodetector, Low Noise PIN Photoreceiver, etc.