The function of the module is photoelectric conversion, the transmitter converts the electrical signal into optical signal, and then the receiving end converts the optical signal into the electrical signal light after transmitting through the optical fiber. The optical module is composed of optoelectronic devices, functional circuits and optical interfaces.
Main parameters of optical module
1. Transmission rate
Transmission rate refers to the number of transmitted bits per second, in MB / s or GB / s.
2. Transmission distance
The transmission distance of optical module can be divided into short distance, medium distance and long distance. Generally speaking, 2km and below are short distance, 10-20km are medium distance, 30km, 40km and above are long distance.
3. Output optical power
The output optical power refers to the output optical power of the light source at the transmitting end of the optical module, unit: DBM.
4. Receiving sensitivity
The receiving sensitivity refers to the minimum received optical power of the optical module at a certain rate and bit error rate, unit: DBM. 5. Light saturation
Also known as saturated optical power, refers to the maximum input optical power at a certain transmission rate and maintaining a certain bit error rate (10-10-10-12), unit: DBM.
6. Extinction ratio
7. Eye diagram
8.Side Mode Suppression Ratio
What is DWDM optical module?
DWDM optical module belongs to wavelength division multiplexing technology. Multiple optical signals are multiplexed into one fiber by using different wavelengths. This operation does not require any power consumption. The channel spacing of DWDM optical module is small, and additional wavelength control devices are needed. The speed can reach 10Gbps and the transmission distance can reach 100km.
What are the functions of DWDM optical module?
Compared with the coarse wavelength division multiplexing (CWDM) optical module, DWDM optical module is designed for single-mode fiber and The wavelength range of DWDM optical module is 1529.16 ~ 1560.61nm, including 18 bands. The working band is C-band, and the inter channel is 50GHz and 0.4nm.
Advantages of DWDM optical module
1. Transparent transmission of data;
2. Large capacity, make full use of the huge bandwidth resources of optical fiber;
3. The optical fiber resources are greatly saved and the construction cost is reduced;
4. High networking flexibility, economy and reliability;
5. All optical network switching can be realized to realize long distance electric relay transmission;
6. The simplified laser module reduces the volume of the equipment and saves the room space;
7. Optical layer recovery is independent of service and rate, which can effectively protect data;
8. Without semiconductor cooler and temperature control function, the power consumption can be reduced significantly.
Application of DWDM optical module
DWDM optical module + DWDM WDM technology can transmit signals of different wavelengths on the same fiber, and multiple data channels with single optical wavelength can increase network capacity. It is specially designed for operators, enterprises, data centers, 5g forwarding, campus network, optical fiber to the home, man, LAN, security system, optical transmission equipment and other optical fiber expansion and business expansion.
1. DWDM SFP optical modules can be used in amplified DWDM networks, fibre channel, fixed and reconfigurable OADM ring network topologies, fast Ethernet, Gigabit Ethernet and other optical transmission systems.
2. DWDM SFP + optical module conforms to 10gbase-zr / ZW standard and can be used in 10G Optical cable.
3. DWDM XFP optical module, DWDM x2 optical module and DWDM xenpak optical module are commonly used in 10G Ethernet, 10g fibre channel, SONET (synchronous optical network) and SDH (optical transmission equipment) applications.
4. In addition, these DWDM optical modules can also be used for switch to switch interfaces, switching backplane applications and router / server interfaces.
DWDM SFP optical module conforms to IEEE 802.3 Gigabit Ethernet standard and ANSI fibre channel specification. It provides high-speed serial link with transmission rate from 100Mbps to 2.5Gbps, which is suitable for interconnection in Gigabit Ethernet and fibre channel environment.
DWDM SFP + optical module is the best solution for 10 Gigabit maximum bandwidth applications. It is designed for operators and large enterprises to build scalable, flexible and cost-effective system.
DWDM XFP optical module conforms to the current XFP MSA specification and can support SONET / SDH, 10 Gigabit Ethernet and 10 Gigabit fibre channel applications.
DWDM x2 optical module conforms to the IEEE 802.3ae standard of Ethernet. It is a high-performance serial optical module for high-speed, 10 Gigabit data transmission applications. It is an ideal choice for 10 Gigabit Ethernet data communication (rack to rack, client interconnection) applications.
Under the action of EDFA, DWDM xenpak optical module can support up to 200 km 32 channel data transmission, which is the first 10 Gigabit Ethernet optical module supporting DWDM.
If you need anything, you can contact HTF Zoey.
contact：support@htfuture.com
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