Specifically, optoelectronic devices may include, but are not limited to, the following:
1. light source: such as light emitting diode (LED) and laser diode (LD), which can convert electric energy into light energy with a specific wavelength.
2. Photodetectors, such as photodiodes and photomultiplier tubes, can convert received optical signals into corresponding electrical signals.
3. Optical amplifier: such as erbium-doped fiber amplifier (EDFA), which is used to enhance the intensity of optical signals transmitted through optical fibers.
4. Optical modulator: used to change the amplitude, frequency or phase of optical signal to encode information.
5. Passive optical devices: such as optical splitter, couplers, filters and connectors. Although they do not convert energy, they play a key role in the routing, distribution and screening of optical signals.
6. Other components in the optical communication system: wavelength division multiplexer (WDM), optical time division multiplexing (OTDM) related devices, optical switches, optical memories, etc.
With the development of science and technology, optoelectronic devices are widely used in many fields, such as data communication, optical fiber network, sensing technology, medical diagnosis, environmental monitoring, aerospace and military, and are constantly developing in the direction of higher speed, larger capacity and lower energy consumption.