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The optical module consists of a photoelectronic device, a functional circuit and an optical interface, etc. The photoelectronic device includes two parts: transmitting and receiving.

Simply put, the role of the optical module is to convert the electrical signal into an optical signal at the sending end, and then convert the optical signal into an electrical signal at the
receiving end after transmission through the optical fiber.

structure

The transmitting part is: the electrical signal input a certain bit rate is processed by the internal driver chip to drive the semiconductor laser (LD) or light emitting diode (LED) to
emit the corresponding rate of the modulated optical signal, and the internal optical power automatic control circuit is provided to keep the output optical signal power stable.

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

sort

According to function

It includes optical receiving module, optical transmitting module, optical transceiver integrated module and optical forwarding module.

The main function of the integrated optical transceiver module is to achieve photoelectric/electro-optical conversion, including optical power control, modulation and
transmission, signal detection, IV conversion and limiting amplification decision regeneration function, in addition to anti-counterfeiting information query, TX-disable and
other functions, common are: SFP, SFF, SFP+, GBIC, XFP, 1x9 and so on.

In addition to the photoelectric conversion function, the optical forwarding module also integrates a lot of signal processing functions, such as: MUX/DEMUX, CDR, function
control, performance energy acquisition and monitoring. Common optical forwarding modules are: 200/300pin, XENPAK, X2/XPAK and so on.

Optical transceiver integrated module, English name transceiver, referred to as optical module or optical fiber module, is an important device in optical fiber communication system.

According to parameters

Pluggability: hot and non-hot

Package form: SFP, GBIC, XFP, Xenpak, X2, 1X9, SFF, 200/3000pin, XPAK.

Transmission rate: The transmission rate refers to the number of bits transferred per second, in Mb/s or Gb/s. Optical module products cover the following major rates:
low rate, 100 gigabit, Gigabit, 2.5G, 4.25G, 4.9G, 6G, 8G, 10G and 40G.

Per package

1.XFP (10 Gigabit Small Form Factor Pluggable) is a heat exchangeable, communication protocol-independent optical transceiver for 10G bps Ethernet,
SONET/SDH, Fibre Channel.

2. Small pluggable optical transceiver (SFP), currently the most widely used.

3.GigacBiDi series single-fiber bidirectional optical modules use WDM technology to realize the transmission of bidirectional information number
(point-to-point transmission) by one fiber. In particular, optical fiber resources are insufficient, and one optical fiber is needed to transmit two-way
signals. GigacBiDi includes SFP single fiber bidirectional (BiDi), GBIC single fiber Bidirectional (BiDi), SFP+ single fiber bidirectional (BiDi), XFP single
fiber Bidirectional (BiDi), SFF single fiber bidirectional (BiDi), and more.

4.RJ45 Electrical port Small pluggable module, also known as electrical module or electrical port module.

5.SFF is divided into 2x5, 2x10 and so on according to its pins

6. Gigabit Ethernet Interface Converter (GBIC) module

7. Passive optical network PON(A-PON, G-PON, GE-PON) optical module

8.40Gbs high-speed optical module.

9.SDH transmission module (OC3, OC12, OC48)

10. Storage module, such as 4G, 8G, etc