The Common Fiber Optical Module Classification Overview

Overview

Fiber Optical module composed by the optoelectronic devices, the functional circuit and the optical interface, the optoelectronic device includes a transmitter and receiver in two parts.

Emitting portion is: enter a certain bit rate signal by the internal driver chip processing to drive a semiconductor laser (LD) or a light emitting diode (LED) to emit a corresponding rate of the modulated optical signal, the automatic control circuit with an internal optical power, so thatthe optical signal output power is kept stable.

Receiving portioin that is the input module of a certain bit rate of the optical signal into an electrical signal by light detecting diode conversion. After preamplifier output electrical signal of the corresponding bit rate.
Simply said optical module is a photoelectric conversion, the transmission side converts the electrical signal into an optical signal, and then optical signal is converted into an electrical signal through the optical fiber transmission, the receiving end.

Classification

1. According to the main parameters of the optical module Category

The pluggable nature: hot-swappable and non-hot-swap
Package: SFP, GBIC, XFP, Xenpak, X2, 1X9, SFF, 200/3000pin, XPAK
Transfer rate: refers to the number of bits transmitted unit Mb / s or Gb / s per second transfer rate. Optical module products covered by the following rate: low rates, Fast, Gigabit, 2.5G, 4.25G, 4.9G, 6G, 8G, 10G and 40G.

2. According to the optical module package to classification

1.XFP module(10 Gigabit Small Form Factor Pluggable) is a hot-swappable, independent of the communication protocol optical transceivers for 10G bps Ethernet, SONET / SDH, Fibre Channel.
2 small form-factor pluggable transceiver optical module (SFP), and SFP at present is the most wide application.

3.GigacBiDi series Bidirectional optical modules use WDM technology to achieve a two-way optical fiber transmission number (point-to-point transmission. Especially fiber resources, need to the fibers pass bidirectional signal). GigacBiDi including SFP Bidirectional (BiDi) GBIC Bidirectional (BiDi) SFP + Bidirectional (BiDi), XFP Bidirectional (BiDi), SFF Bidirectional (BiDi).

4.RJ45 electrical port small form factor pluggable module, also known as modules or electrical interface module.
5.SFF its pin is divided into 2×5, 2×10
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 modules.
9.SDH transmission module (OC3, OC12, OC48)
10 storage modules, such as 4G, 8G, etc.