Fiber optical module is seen as a three sets of performance criteria: transceiver, receiver, and transmitter. The transmitter converts electrical signals into light signals, with the fiber optical transmission, the receiving end of the optical signals are changed into electric signals.

According to the optical module function, fiber optic transceivers could be split into fiber optical receiver module, fiber optical transmission module, fiber optical transceiver module and fiber optical transponder module.

Fiber optic transceiver module main function would be to achieve the conversion between optical-electrical and electrical-optical, including optical power control, modulation transmission, signal detection, IV conversion and limiting amplifier decision regeneration, additionally, there are security information query, TX-disable along with other functions. Common fiber optic transceiver modules are: SFP, SFF, SFP , GBIC, XFP, 1x9 and so on.

Fiber optical transmission module not just has photoelectric conversion function, but additionally it integrates lots of signal processing functions, for example: MUX / DEMUX, CDR, function control, energy acquisition and monitoring. Common fiber optical transmission modules: 200/300pin, XENPAK, and X2/XPAK the like.

The optical transceiver module, referred to as optical module or fiber optic module, is an important device in fiber optical communication system.

According to the main parameters of fiber optical module

Pluggable: hot pluggable and non-hot pluggable;

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

Transmission Rate: Transmission rate refers to the quantity of gigabits transmitted per second, per unit of Mb/s or Gb/s. Optical modules cover the following main rate: low rates, Fast, Gigabit, 2.5G, 4.25G, 4.9G, 6G, 8G, 10G and 40G.

According to the optical module package

1.XFP (10 Gigabit Small Form Factor Pluggable) is a hot pluggable transceiver, is independent communication protocol optical transceiver for 10G bps Ethernet, SONET / SDH and Fiber Channel.

2.SFP transceivers (small form factor pluggable), currently are the most favored.

3.GigacBiDi series of single-mode bidirectional optical module, uses WDM technology, achieving a fiber optic transmits two-way information (indicate point transmission, especially for fiber optic resources are insufficient, need a fiber bi-directional signal transmission). GigacBiDi series include SFP Bidirectional (BiDi), GBIC Bidirectional (BiDi), SFP Bidirectional (BiDi), XFP Bidirectional (BiDi), SFF Bidirectional (BiDi) and so on.

4.RJ45 transceiver is electrical port small form factor pluggable module, also referred to as the ability module or electrical interface module.

5.SFF According to their pin, SFF transceivers are divided into 2x5, 2x10, etc.

6 Gigabit Ethernet Interface Converter (GBIC) module.

7 Passive Optical Network PON (A-PON, G-PON, EPON OLT) optical module.

8.40Gbs high-speed optical modules.

9.SDH transmission module (OC3, OC12, OC4 .

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

Source from Classifications Of Fiber Optic Modules

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