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What is a Reference Optical Transmitter?
A Reference Optical Transmitter is an optical system that converts an electrical data signal into a precisely controlled optical signal for testing, characterization, or high-speed optical communication systems. It combines a laser source with an electro-optic modulator to generate standardized optical signals at defined wavelengths and data rates.
Reference optical transmitters can support multiple modulation formats and wavelength bands, providing a stable and repeatable optical source for evaluating optical components, transmission systems, and interfaces.
HOW A Reference Optical Transmitter Works
The operation of a reference optical transmitter can be understood through three main steps:
Electrical signal generation
A digital or linear electrical signal is generated according to the required modulation format and data rate.
Optical modulation
A laser provides the optical carrier, while an electro-optic modulator converts the electrical signal into a controlled optical signal by varying the light according to the selected modulation scheme.
Reference signal output
The resulting optical signal is delivered with controlled characteristics such as wavelength, bandwidth, modulation format, and signal quality, providing a repeatable reference for testing or communication.
