Optical module is composed of optoelectronic devices, functional circuits and optical interfaces. Optoelectronic devices include transmitting and receiving parts. The transmitting part is: the electrical signal with a certain bit rate is processed by the internal drive chip to drive the semiconductor laser (LD) or LED (LED) to emit the modulated optical signal of the corresponding rate, and its internal optical power automatic control circuit, so that the output optical signal power remains stable. The receiving part is: the optical signal input module with a certain bit rate is converted into an electrical signal by an optical detection diode. The preamplifier outputs the corresponding code rate electrical signal.
Simply put, the role of the optical module is photoelectric conversion, the sending end converts the electrical signal into the optical signal, through the optical fiber transmission, the receiving end converts the optical signal into the electrical signal.
Changsha Xingheda Technology Co,.Ltd have a large quantity of new and used optical module and provide good quality with best price.We also provide processing and customizing service. Our mission is to ensure that our customers can turn up services faster, build out the fiber networks they need to be competitive, and keep them up and running.  

Huawei	OSN010N04	100G-4×25-1310NM-10KM
Huawei	SCF1011L4LNH101	100G-4×25-1310NM-10KM
Huawei	OSN010N09	100G-4×25-1310NM-10KM
Huawei	OSN010N10	100G-4×25-1310NM-10KM
Huawei	OSX040A00	10G-1550NM-40KM
Huawei	02315200	1.25G-1310NM-10KM
Huawei	S4015772	10G-1310NM-10KM
Huawei	02318170	10G-1310NM-10KM
Alcatel-Lucent	3HE04821AB	100GBASE-LR4
Alcatel-Lucent	3FE25774AA01	6G44-AR-AWH
Alcatel-Lucent	1AB375650001	10GBASE
Alcatel-Lucent	1AB194670019	2.4G-1310NM-20KM
Alcatel-Lucent	1AB194670018	2.4G-1310NM-20KM
Alcatel-Lucent	1AB375380013	10GBASE-LR.W
Alcatel-Lucent	1AB187280065	3G-15KM S-16.1
Alcatel-Lucent	3HE04823AA	10GBASE-LR

If you have any specific modules you need,you can find us in www.chinaxingheda.com