1.25G BiDi SFP

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1.25G BiDi SFP 20KM


Optional specification 

Wavelengths : 

  1.   34/43 : Tx1310nm/Rx1490nm ; Tx1490nm/Rx1310nm

  2.   35/53 : Tx1310nm/Rx1550nm ; Tx1550nm/Rx1310nm

  1. Connectors : 

  1.   LC/UPC 

  2.   SC/UPC 

    Product description

    Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). They simultaneously comply with Gigabit Ethernet as specified in IEEE STD 802.3 and 1x Fibre Channel as defined in FC-PI-2 Rev. 10.0 .They are RoHS compliant and lead-free. 


    • Single SC/LC receptacle optical interface compliant

    • Hot-pluggable SFP footprint

    • 1310nm FP laser transmitter ; 1550nm DFB laser transmitter 


    • 1310nm FP laser transmitter;1490nm DFB laser transmitter 

    • RoHS compliant and Lead Free

    • Up to 20km on 9/125um SMF

    • Metal enclosure for lower EMI

    • Single 3.3V power supply

    • Low power dissipation <600mW

    • Commercial operating temperature range: 0°C to 70°C 



    • Gigabit Ethernet

    • 1.06 Gb/s Fibre Channel 

    IV.  Optical Characteristics (TOP=25°C, Vcc=3.3 Volts)

    Output Opt. PowerPO-9--3dBm1
    Optical Wavelengthλ129013101330nm2
    Spectral Widthσ--3nm2
    Optical Rise/Fall Timetr/tf-170260ps4
    Deterministic Jitter ContributionTXΔDJ-2056.5ps5
    Total Jitter ContributionTXΔTJ-50119ps
    Optical Extinction RatioER9--dB

    Average Rx Sensitivity @ 1.25 Gb/s(Gigabit Ethernet)RSENS2---24dBm6, 7
    Average Rx Sensitivity @ 1.06 Gb/s(1X Fibre Channel)RSENS1---25dBm6, 7
    Maximum Received PowerRXMAX0

    Optical Center WavelengthλC147014901510nm
    LOS De-AssertLOSD---25dBm
    LOS AssertLOSA-36--dBm
    LOS Hysteresis
    1.  Notes:

    2. 1. Class 1 Laser Safety.  

    3. 2. Also specified to meet curves in FC-PI-2 Rev. 10.0 Figure 18, which allow trade-off between wavelength, spectral width.

    4. 3. Equivalent extinction ratio specification for Fibre Channel. Allows smaller ER at higher average power.

    5. 4. Unfiltered, 20-80%. Complies with IEEE 802.3 (Gig. E) and FC 1x eye masks when filtered.

    6. 5. Measured with DJ-free data input signal .In actual application, output DJ will be the sum of input DJ and ΔDJ.

    7. 6. Measured with conformance signals defined in FC-PI-2 Rev. 10.0 specifications.  

    8. 7. Measured with PRBS 27-1 at 10-12 BER .

    1.25G TX1490RX1310 20KM.pdf

    1.25G TX1310RX1550 20KM.pdf

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