EDFA-1550RF RF+ Optical input EDFA

RF + 1550nm Optical input Erbium Doped Fiber Amplifier


RF + 1550nm Optical input Erbium Doped Fiber Amplifier

RF + 1550nm Optical input Erbium Doped Fiber Amplifier

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  FOT EDFA-1550RF series is 1550nm RF + 1550nm Optical input Erbium Doped Fiber Amplifier, which is specially designed for the insertion of the local program, it adopts WDM technology to combine 1550nm internal modulation optical transmitter and EDFA, which will avoid the interfere of local channels and main channel, the inserted channels can reach more than 10 analog and 30 digital channels.
  In the interior of the machine is equipped with the output optical power stability circuit and laser thermoelectric cooling device, temperature stability control circuit to ensure optimal machine performance and long-life laser stability. The microprocessor software monitor the lasers’ working state, the VFD screen displays the operating parameters. Once the laser operating parameters deviate from the permissible range set by the software, micro-processing will automatically turn off laser power, red light goes on to warn, digital panel prompts cause of troubles.


  • RF-input: Transmitter part adopts DFB laser such as JDSU, Lucent or Fujitsu.
  • High quality: The former-class pump common utilizes 980nm, after-class pump utilizes 1480nm, power is legitimately optimized by software to minimize the NF of the EDFA, could be comparable with the so-called low-power optical amplifier. It can make the system to obtain superior CNR.
  • Reliability: The 19 “1U standard rack, built-in high-performance switching power supply, it can work at 85~265Vac City Network Voltage, As well as an optional DC48V power supply (reservations required); chassis cooling automatic temperature control. Mechanical cooler (heat sink) on one side of the chassis helps to make heat dispersion thus to protect the pump laser.
  • Intuitive: The laser is the most expensive machine components, machine equipped with microprocessor monitors the working state of the laser, the panel LCD window displays the operating parameters
  • Network type: Select all piece status monitoring transponder guarantee to meet the national standard and be compatible with the SCTE HMS standard, it enable network management monitoring capabilities.

Technical Specification

Operating wavelength range1540~1560nm
Optical input power0~+10 dBm
Nominal optical input power3dBm
Saturated output power13~26dBm
Number of output ports1~8 (customer specify)
Noise Figure (NF)<5.0dB (+0 dBm input @1550nm)
Bandwidth of RF signal45~862 Mhz
RF signal range70~100 dBuV
Flatness≤±0.75 dB
Input resistance75 Ω
Optical output power stability<±0.2 dB
Polarization Sensitivity<0.2 dB
Polarization dependence gain<0.5 dB
Polarization mode dispersion<0.5ps
Optical return loss≥45 dB
Optical connector (IN/OUT)SC/APC or FC/APC or customer specify
SNMP management interfaceRJ45 (optional)
Power supply115~265VAC or -48 VDC
Power consumption50W
Working temperature-5~65 ℃
Storage temperature-40~80 ℃
Operating relative humidity5~95 %
Size19”×14.5”×1.75” (1U,19’’)

Block diagram

EDFA-1550RF Product block diagram

EDFA-1550RF Product block diagram

Product series

ModelRF + Optical input Erbium Doped Fiber Amplifier
Output power @ 0dBm input
EDFA-1550RF-13Saturated output power≥13dBm
EDFA-1550RF-14Saturated output power≥14dBm
EDFA-1550RF-15Saturated output power≥15dBm
EDFA-1550RF-16Saturated output power≥16dBm
EDFA-1550RF-17Saturated output power≥17dBm
EDFA-1550RF-18Saturated output power≥18dBm
EDFA-1550RF-19Saturated output power≥19dBm
EDFA-1550RF-20Saturated output power≥20dBm
EDFA-1550RF-21Saturated output power≥21dBm
EDFA-1550RF-22Saturated output power≥22dBm
EDFA-1550RF-23Saturated output power≥23dBm
EDFA-1550RF-24Saturated output power≥24dBm
EDFA-1550RF-25Saturated output power≥25dBm
EDFA-1550RF-26Saturated output power≥26dBm
EDFA-1550RF-27Saturated output power≥27dBm
EDFA-1550RF-28Saturated output power≥28dBm
EDFA-1550RF-29Saturated output power≥29dBm

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