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Optical transceiver (SFP GBIC XFP) consists of optoelectronic devices, functional circuits, and optical interfaces, optoelectronic devices, including the transmitter and receiver parts. Part of the launch is: a certain bit rate input signal by the internal driver IC processing drive the semiconductor laser (LD) or light emitting diode (LED) emits the corresponding rate of the modulated optical signal with optical power within the automatic control circuit, The output optical signal power to maintain stability. The receiving part is: after a certain bit rate optical signal input module is converted to electrical signals by the light detection diode. After the preamplifier output signal of the corresponding bit rate signal, the output is generally PECL. Will output an alarm signal in the input optical power is less than a certain value.

1 optical transceiver classification
In accordance with the rate of sub-applications: Ethernet 100Base (Fast), 1000Base (Gigabit), 10GE
SDH applications, 155M, 622M, 2.5G, 10G
Accordance with the package: 1 × 9, the SFF, SFP, GBIC, XENPAK, XFP
1 × 9 package - welding optical module, the general speed of not more than gigabit, multi-SC interface
SFF package --- welding small-package optical modules, the average speed is not higher than gigabit, multi-LC interface
GBIC package - hot-swappable Gigabit Interface optical module with SC connector
SFP package - hot-swap package module, the maximum data rate of up to 4G, the use of LC interface
XENPAK package - Application in Gigabit Ethernet, SC connector
XFP package - 10G optical modules used in Gigabit Ethernet, SONET and other systems, multi-LC interface
Laser type: LEDs, VCSELs, the FP LD, DFB L
In accordance with the emission wavelength: 850nm, 1310nm, 1550nm
Use: the non-hot-plug (1 × 9, SFF) hot-pluggable (GBIC, SFP, XENPAK, XFP)

2 the classification of fiber optic connectors
The fiber optic connector is a connector on two of the section of the fiber are installed, mainly for optical wiring.
According to the type of fiber: single-mode fiber connector (usually G.652 fiber: Fiber diameter 9um, OD 125um), multimode fiber connectors
In accordance with the fiber optic connector, Connector type: FC, SC, ST, LC, MU, MTRJ, etc., commonly used in FC, SC, ST, LC,
FC - first developed by NTT. External reinforcement using metal fastening method for the turnbuckle. Test equipment is the choice of using connectors more.
SC type - developed by Japan's NTT molded plug coupling connector. The shell molding, made of molded glass fiber plastic, rectangular; pins made by precision ceramic coupling sleeve slotted casing structure for the metal. The fastening method using the plug pins, no rotation.
LC type - Lucent design. The tube diameter is 1.25mm, which is commonly used in the FC-SC, ST half of the tube diameter 2.5mm. Improve the density of the connector application.
In accordance with the fiber optic connector to connect the head pin end: PC, SPC, UPC, the APC
According to the diameter of the fiber optic connector: Φ3 Φ2, Φ0.9

3 Important reason for optical module disable
The optical module malfunction divided into transmitter failure and receiver failure, analysis of the specific reasons, the most common problems concentrated in the following areas:
A. Pollution and damage of the optical port
Larger optical link loss caused by the pollution and damage of the optical interface, the optical link barrier. The causes are:
A. Optical module optical port is exposed to dust from entering the optical port and pollution in the environment;
B. The use of optical fiber connector end has been contaminated, the optical module optical ports secondary pollution;
C. Pigtailed improper use of the optical connector end face scratched;
D. Using low-quality fiber optic connectors;
A good optical module manufacturers - FiberStore
FiberStore finally adhere to the philosophy of science and technology innovation-led development, walking in the forefront of the field of optical communication technology. To provide our clients a full range of fiber optic transceiver modules: GBIC series, series of the SFP, the SFP + series, the XFP series, SFF Series, 1x9 Series, covering products from low speed to 10G. FiberStore’s GBIC, SFP, 10G optical modules provide products with Cisco, Huawei, 3COM, ZTE, Extreme, Foundry, Juniper, Kay Chong, Nortel, D-Link, many manufacturers China third-class switches, routers, servers, firewall product is fully compatible.
FiberStore provide all-GBIC, SFP, 10G products are stringent compatibility testing and performance testing, thus ensuring a first-class product quality. All sales of optical / electrical transceivers are committed to a three-year free warranty.