What are the components of an optical module?

Optical modules are divided into optical receiving modules and optical transmitting modules

The main ones in the optical receiving module are ADP and PIN photoelectric detection devices, and the rest is the peripheral processing circuit, including noise removal, waveform removal, etc.

Optical receiving modules are mainly semiconductor lasers such as LEDs and LDs, and now some also use more advanced semiconductor lasers. The rest is also the circuit, including the modulator, the modulation is divided into external modulation and internal modulation, and internal modulation is generally used, that is, the method of adding voltage to the circuit; External modulation also requires some optical devices, which are generally not used.

Optical module, including a lens module, a temperature compensation element, aTemperature sensorand an electronic control unit.

Optical transceivers. optical module) is composed of optoelectronic devices, functional circuits and optical interfaces, and optoelectronic devices include two parts: transmitting and receiving.

To put it simply, the function of the optical module is that the transmitter converts the electrical signal into an optical signal, and after transmission through the optical fiber, the receiver converts the optical signal into an electrical signal.

Optical modules are optoelectronic devices that carry out photoelectric and electro-optical conversion. The transmitter of the optical module converts the telecommunication such as the collapse number into an optical signal, and the receiver converts the optical signal into an electrical signal. Optical modules are classified according to the packaging form, and the common Heng Rubber Scales include SFP, SFP+, SFF, Gigabit Ethernet Interface Converter (GBIC), etc.

Emission part: Enter a certain bitrate.

The electrical signal is processed by an internal driver chip to drive a semiconductor laser (LD) or light-emitting diode.

LED) emits a modulated optical signal of the corresponding rate, and it is equipped with an automatic optical power control circuit to keep the output optical signal power stable.

Receiving part: After the optical signal of a certain bit rate is input into the module, it is converted into an electrical signal by the optical detection diode, and the electrical signal of the corresponding bit rate is output after the preamplifier.

Application products: In the communication with Epson AR project manager Wen Junjie, we can feel that Epson has always adhered to its own product innovation in the AR industry. In addition, Epson is also working with Chinese companies in the fields of cultural tourism, education, and industry to create practical AR landing solutions.

With the metaverse.

We can see that players with modules as their core competitiveness are also gradually emerging in the AR ecosystem.

Currently, AR glasses.

For the display in clarity, light transmittance.

As well as the increasing requirements for low power consumption, the development of modules has attracted more and more attention.

10 Gigabit optical modules mainly include SFP+ and XFP packaging modes, with wavelengths of 850nm, 1310nm, 1510nm, and 1550nm. Beijing Dongda Jinzhi has various packaging forms of gigabit optical modules, 10 gigabit optical modules, 100G optical modules and so on.

The function of the optical module is that the transmitter converts the electrical signal into an optical signal, and after transmission through the optical fiber, the receiver converts the optical signal into an electrical signal.

Optical modules are optoelectronic devices that carry out photoelectric and electro-optical conversion. The transmitter converts the electrical signal into an optical signal, and the receiver converts the optical signal into an electrical signal. Optical modules are classified according to the package form, and the common ones are SFP, SFP+, SFF, Gigabit Ethernet interface converter (GBIC), etc.

The function of optical modules is photoelectric conversion.

The transmitter converts the electrical signal into an optical signal, and after transmission through the optical fiber, the receiver converts the optical signal into an electrical signal.

The optical fiber module is composed of optoelectronic devices, functional circuits and optical interfaces, and optoelectronic devices include two parts: transmitting and receiving.

1. The emission part is: the input electrical signal of a certain rate is processed by the internal drive chip to drive the semiconductor laser (LD) or light-emitting diode (LED) to emit a modulated optical signal of the corresponding rate, and it is equipped with an automatic control circuit for optical power to keep the output optical signal power stable.

2. The receiving part is: the optical signal of a certain bit rate is converted into an electrical signal by the optical detection diode after the input module. After passing through the preamplifier, the electrical signal of the corresponding bit rate is output.

The optical module is a connection module that plays the role of photoelectric conversion, in which the transmitter converts the electrical signal into an optical signal, and after transmission through the optical fiber, the receiver converts the optical signal into an electrical signal. It is composed of optoelectronic devices, functional circuits and optical interfaces, and optoelectronic devices include two parts: transmitting and receiving.

Moreover, optical modules are not only one name, common Chinese names are: optical module, optical fiber module, optical transceiver integrated module;

The main difference between optical modules (850nm, 1310nm, and 1550nm) is Xiaochang.

1.The wavelengths are not the same.

2.The transmission mode is different, generally 850nm is multi-mode transmission, 1310 1550nm is single-mode transmission.

3.The transmission distance is different, and the transmission distance of 850nm optical modules is generally within 500 meters. The transmission distance of 1310nm optical modules is generally 2-40 km. The transmission distance of 1550nm optical modules is generally 40-120 kilometers.

4.Of course, the transmission distance is also related to the luminous power, transmission rate, and reception sensitivity of the optical module. Generally, the lower the receiving sensitivity, the farther the transmission distance, for example, the receiving sensitivity of the optical chain modified module produced by Shenzhen Fiber Yitong can reach -28db, while the general manufacturer only has -23db, so the transmission distance of the optical module of Fiber Yitong is relatively far, and the signal integrity is also better.

There are many models, and Gigabit SFP and 10G SFP+ are still commonly used in China; Then 40g qsfp g qsfp28; At present, there are also 200G QSFP56 QSFP-DD and 400G QSFP-DD for testing; 5G will commonly use 25G SFP28.

Have been exposed to optoelectronics, divided into active products and passive products.

The function of the optical module is photoelectric conversion, the transmitter converts the electrical signal into an optical signal, and after transmission through the optical fiber, the receiver converts the optical signal into an electrical signal.