QSFP 40G 1310nm 40km LC Transceiver

GLQ5L0C31 40g DWDM is designed to operate over single-mode fiber system using 4X10 CWDM channel in 1310 band and links up to 30km. The module converts 4 inputs channel of 10Gb/s electrical data to 4 CWDM optical signals, and multiplexes them into a single channel for 40Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 40Gb/s input into 4 CWDM channels signals, and converts them to 4 channel output electrical data.  

The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm. The 40g dwdm transceiver contains a duplex LC connector for the optical interface and a 38-pin connector for the electrical interface. Single-mode fiber (SMF) is applied in this module. This product converts the 4-channel 10Gb/s electrical input data into CWDM optical signals (light), by a 4-wavelength Distributed Feedback Laser (DFB) array. The 4 wavelengths are multiplexed into a single 40Gb/s data, propagating out of the transmitter module via the SMF. The receiver module accepts the 40Gb/s optical signals input, and de-multiplexes it into 4 CWDM 10Gb/s channels. Each wavelength light is collected by a discrete photo diode, and then outputted as electric data after amplified by a TIA.  

The 40g DWDM is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP+ Multi-Source Agreement (MSA) and compliant to 40G QSFP+ LR4 of  IEEE 802.3ba. 

Compatibility of QSFP 40G DWDM 1310nm 40km LC Transceiver

Technical Specification Of QSFP 40G DWDM 1310nm 40km LC Transceiver

Absolute Maximum Ratings

Recommended Operating Conditions

What is the difference between a CWDM optical transceiver  and a common optical transceiver ?

The difference between CWDM optical transceiver  and ordinary optical transceiver :

① Save more fiber resources

Compared with ordinary optical transceiver s, CWDM optical transceiver s use fewer fibers. The CWDM optical transceiver  multiplexes multiple signals of different wavelengths into one signal through a multiplexer, and then transmits it to the receiving end through a single optical fiber. The receiving end demultiplexes one signal into multiple different wavelengths through a demultiplexer. The signal is transmitted to the corresponding device. Ordinary optical transceiver s need to use one optical fiber to transmit one wavelength, and multiple optical fibers must be used to transmit multiple waves, so CWDM optical transceiver s save more fiber resources than ordinary optical transceiver s.

②Working wavelength is different

CWDM optical transceiver s have a total of 18 working wavelengths (1270-1610nm), each working wavelength interval is 20nm, and there is only one working wavelength for ordinary optical transceiver s, commonly used are 850nm, 1310nm, 1490, 1550nm.

Parameter Of QSFP 40G DWDM 1310nm 40km LC Transceiver