Optical transmitters are used to convert HF broadcast signals to optically modulated signals for transmission over a fiber optic link. The signals are usually analog TV, all types of digital TV, and data transmissions using the DOCSIS standard. Transmitters are subdivided - depending on the application and transmission requirements.
Long distances are transmitted with modulated transmitters, shorter distances with the cheaper directly modulated transmitters. Transmitters are available in different wavelength ranges, 1310nm or 1550nm or DWDM wavelengths. Applications are TV services with RF overlay for FTTH/FTTB networks, or transmission of DOCSIS and TV service in HFC networks with TV and cable modem applications.
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