40GBASE-LR4L QSFP+ LC Fiber Transceiver 1310nm 2km For Data Center

Basic Information
Place of Origin: Shenzhen, China
Brand Name: Gigaopto
Certification: CE, FCC, ROHS, ISO9001, ISO14000, MSDS, REACH, CP65, TUV, UL
Model Number: GTQ-L13A4-02DC
Minimum Order Quantity: 1
Price: negotiable
Packaging Details: Static bag, Plastic PVC Pack, Retail box
Delivery Time: 1-5 work days
Payment Terms: T/T, L/C, Western Union
Supply Ability: 5,000pcs/month
Detail Information
Product Name: QSFP 40GBASE-LR4L Bit-Rate: 40Gbps
Wavelength: 1310nm CWDM (1270nm-1330nm) LD/PD Type: DFB/PIN
Transmission: 2km Fiber Type: SMF
Warranty: 36-month Connector: Duplex LC
Highlight: QSFP+ 40GbE LR4L For 2km LC Receptacle DOM
High Light:

QSFP+ LC Transceiver


LC Fiber Transceiver 2km


LC Fiber Transceiver 1310nm

Product Description

QSFP+ 40GBASE-LR4L 1310nm 2km DOM Duplex LC SMF Optical Transceiver Module For Ethernet and Data Center



  • Compliant with QDR/DDR Infiniband data rates
  • Hot pluggable electrical interface
  • CWDM un-cooled DFB lasers, using ITU G.694.2 wavelength grid at 1270, 1290, 1310 and 1330nm
  • High Sensitivity PIN-TIA with optical DEMUX
  • Lower power consumption <3.5W
  • Operating case temperature 0°C to +70°C
  • 3.3V power supply
  • RoHS 6 compliant(lead free)
  • 40Gbps CWDM 2km QSFP+ Optical Transceiver
  • Transmission data rate up to 10.3Gbps per channel
  • QSFP+ MSA compliant, Compliant to IEEE 802.3ba specification for 40GBASE-LR4 links
  • Up to 2km reach over standard single mode fiber


  • Client-side 40G Telecom connections
  • 40GBASE-LR4 40G Ethernet links
  • Infiniband QDR and DDR interconnects




Gigaopto’s GTQ-L13A4-02DC QSFP LR4 Lite transceiver is a module designed for 2km optical communication applications. The design is compliant to 40GBASE-LR4 of the IEEE P802.3ba standard.

The module converts 4 inputs channels of 10.3125Gb/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 demultiplexes 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 1331nm as members of the CWDM wavelength grid defined in ITU-T G.694.2. It contains a duplex LC connector for the optical interface and a 38-pin connector for the electrical interface. To minimize the optical dispersion in the long-haul system, single-mode fiber (SMF) has to be applied in this module.

The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP+ Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference.





Package QSFP Data Speed 41.2Gbps (4×10.3Gbps)
Center Wavelength 1310nm CWDM Max Reach 2km
Interface LC Duplex Fiber Type SMF
Transmitter Type DFB Receiver Type PIN
TX Power per Lane -7~2.3dBm RX Sensitivity per Lane <-11.5dBm
Power-budget 4.5dB RX Overload >2.3dBm
Power Dissipation ≤3.5W Extinction Ratio >3.5dB
Host FEC Supported Bit Error Ratio (BER) 1E-12
DOM Supported Operating Temperature 0 to 70°C (32 to 158°F)
OEM/ODM Supported BTMF 5,000,000Hours
Protocols 40G Ethernet, Infiniband Fibre Channel, SATA/SAS3, MSA Compliant



Electrical Specifications


Parameter Symbol Min Typical Max Unit Notes
Power Consumption       3.5 W  
Supply Current Icc     1.1 A  
Transceiver Power-on Initialization Time       2000 ms 1
Transmitter (Each Lane)
Single-ended Input Voltage Tolerance (Note 2)   -0.3   4.0 V Referred to TP1 signal
AC Common Mode Input Voltage Tolerance   15     mV RMS
Differential Input Voltage   50     mVpp LOSA
Swing Threshold           Threshold
Differential Input Voltage Swing Zin, pp 190 - 700 mVpp -
Differential Input Impedance Zin 90 100 110 ohm -
Receiver (Each Lane)
Single-ended Output Voltage   -0.3   4.0 V Referred to signal common
AC Common Mode Output Voltage       7.5 mV RMS
Differential Output Voltage Swing Zout, pp 300   850 mVpp  
Differential Output Impedance Zout 90 100 110 ohm  


Optical Characteristics


Parameter Symbol Min Typical Max Unit Notes


Lane Wavelength

L0 1264.5 1271 1277.5 nm  
L1 1284.5 1291 1297.5 nm  
L2 1304.5 1311 1317.5 nm  
L3 1324.5 1331 1337.5 nm  
SMSR SMSR 30     dB  
Total Average Launch Power PT     8.3 dBm  
Average Launch Power,each Lane PAVG -7.0   2.3 dBm  
OMA, each Lane POMA -6.0   3.5 dBm 1
Difference in Launch Power between any Two Lanes (OMA) Ptx,diff     6.5 dB  

Launch Power in OMA minus Transmitter and Dispersion Penalty

(TDP), each Lane






TDP, each Lane TDP     2.6 dB  
Extinction Ratio ER 3.5     dB  
RIN20OMA RIN     -128 dB/Hz  
Optical Return Loss Tolerance TOL     20 dB  
Transmitter Reflectance RT     -12 dB  
Eye Mask{X1, X2, X3, Y1, Y2, Y3}   {0.25, 0.4, 0.45, 0.25, 0.28, 0.4}   2
Average Launch Power OFF Transmitter, each Lane Poff     -30 dBm  
Damage Threshold, each Lane THd 4.5     dBm 3
Total Average Receive Power       8.3 dBm  
Average Receive Power, each Lane   -11.6   2.3 dBm  
Receive Power (OMA), each Lane       3.5 dBm  
Receiver Sensitivity (OMA), each Lane SEN     -11.5 dBm  
LOS Assert LOSA   -28   dBm  
LOS Deassert LOSD   -15   dBm  
LOS Hysteresis LOSH 0.5     dB  
Receiver Electrical 3 dB upper Cutoff Frequency, each Lane Fc     12.3 GHz  


1. Even if the TDP < 1 dB, the OMA min must exceed the minimum value specified here.

2. See Figure 2 below.

3. The receiver shall be able to tolerate, without damage, continuous exposure to a modulated optical input signal having this power level on one lane. The receiver does not have to operate correctly at this input power.

4. Measured with conformance test signal at receiver input for BER = 1x10-12.

5. Vertical eye closure penalty and stressed eye jitter are test conditions for measuring stressed receiver sensitivity. They are not characteristics of the receiver.





Gigaopto's optical transceivers are 100% compatible with all major switch brands and will not cause damage to OEM devices.

In order to ensure the quality and compatibility of our products, each product is carefully tested on the corresponding equipment before delivery to customers.

For this GTQ-L13A4-02DC compatibility, please refer to the P/N correspondence table. If the brand and part number you are looking for is not listed below, please let us know and we will be delighted to provide you with more details.


Corresponding Compatible Brand/Part Number
Brand Part Number Brand Part Number
Gigaopto GTQ-L13A4-02DC Arista QSFP-40G-LRL4
Cisco WSP-Q40GLR4L HW 02311YVB
Extreme 10334 Juniper JNP-QSFP-40GE-IR4
HPE H3C JL286A Brocade 40G-QSFP-LR4L
D-Link DEM-QX02Q-IR4 Mellanox MC2210511-IR4
F5 Networks F5-UPG-QSFP+IR4 Fortinet FG-TRAN-QSFP+IR
Avago QSFP-40GE-IR4 Palo Alto Networks PAN-40G-QSFP-LX4
H3C QSFP-40G-LR4L-WDM1300 MikroTik Q+31DLC2D
Allied Telesis QSFPIR4 Chelsio SM40G-IR
Edge-Core ET6401-IR4 MRV QSFP-40G-IR
Intel QSFP-IR4-40G Ciena QSFP-40GE-IR4
Check Point CPAC-TR-40IR-SSM160-QSFP-C AvayA AA1404001-E6



Package Dimensions

The module is designed to be complaint with QSFP+ MSA specification. Package dimensions are specified in SFF-8436.


40GBASE-LR4L QSFP+ LC Fiber Transceiver 1310nm 2km For Data Center 0



For More of our QSFP+ 40GBASE Transceiver Series, please refer to the following form


P/N Description Wave Length Reach TX/RX TX Power (dBm) Rx Sens. (dBm) Connector
GTQ-M85A4-02DC 40G SR4 850nm 150m VCSEL/PIN -7.6~2.4 <-9.5 MTP/MPO-12
GTQ-B08A4-02DC 40G SR BiDi 850/900nm 150m VCSEL/PIN -4~5 <-11 LC
GTQ-B08A4-04DC 40G eSR4 850nm 300m VCSEL/PIN -7.5~0 <-11 MTP/MPO-12
GTQ-M13A4-02DC 40G PSM IR4 1310nm 1.4km DFB/PIN -5.5~+1.5 <-11.5 MTP/MPO-12
GTQ-L13A4-M2DC 40GBASE-UNIV 1310nm 150m/2km DFB/PIN -7~4.3/-10~2.3 <-10/<-13.7 LC
GTQ-L13A4-02DC 40G LR4 Lite 1310nm CWDM 2km DFB/PIN -7~2.3 <-11.5 LC
GTQ-M13A4-10DC 40G LR4 1310nm CWDM 10km DFB/PIN -7~2.3 <-11.5 LC
GTQ-M13A4-10DC 40G PSM4 1310nm 10km DFB/PIN -6~-1 <-14.4 MTP/MPO-12
GTQ-M13A4-20DC 40G eLR4 1310nm CWDM 20km DFB/PIN -4.5~2.3 <-12.5 LC
GTQ-B13A4-40DC 40G ER4 1310nm CWDM 40km DFB/APD -2.7~4.5 <-21.2 LC
GTQ-M13A4-02DC 40G PSM4 Lite 1310nm 2km DFB/PIN -6~-1 <-14.4 MTP/MPO-12
GTQ-B13A4-30DC 40G ER4 Lite 1310nm CWDM 30km DFB/APD -3.7~4.5 <-18 LC

Contact Details

WhatsApp : +8615989585901