32 Port WDM EDFA
Overview
The EDFA high-power optical amplifier is a high-power multi-port output fiber amplifier with a gain spectrum bandwidth of 1535~1565nm. It is mainly designed for applications of CATV or 1~8 continuous strip channels (ITU wavelengths). It provides a flexible, low-cost solution for large- scale FTTH coverage of CATV systems in large and medium-sized cities.
What is EDFA?
When optical transmitting over long distance, the optical signal has to be amplified many times because of the signal loss from fiber attenuation, connectivity losses, fiber splicing losses, etc. Before optical amplifier is invented, the optical signal has to be first converted into electrical signal, amplified, and then converted back to optical signal again. The process is very complicated and expensive. EDFA Optical amplifier can amplify signals directly, this process is significantly cheaper and started a fiber optic revolution.
EDFA, or Erbium-doped Fiber Amplifier, uses the Erbium-doped fiber as optical amplification medium to directly enhance the signals. The amplifying medium is a glass optical fiber doped with erbium ions. The erbium-doped fiber gain medium amplifies light at wavelengths that are in the neighborhood of 1550 nm—the optical wavelengths that suffer minimum attenuation in optical fibers. EDFA works best in the range 1530 to 1565 nm, and it possesses low noise and can amplify many wavelengths simultaneously, making it the fiber amplifier of choice for most applications in optical communications
What is WDM?
Wavelength Division Multiplexing (WDM: Wavelength Division Multiplexing) is a technology that simultaneously transmits multiple wavelength signals in an optical fiber. WDM technology increases the transmission capacity of an optical fiber several times to tens of times or even hundreds of times compared with single-wavelength transmission, thereby increasing the transmission capacity of the optical fiber, reducing costs, and having great application value and economic value.
PON+EDFA application
EDFA optical amplifier mainly used for 1550nm, which make CATV over fiber tranmission more distance. The PON work with EDFA by FWDM, which realize triple FTTH application.
Features
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Limit Parameter
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Maximum received range
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1535-1565 nm
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Lowest input optical power
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-10dBm
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The highest input optical power
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+10dBm
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Extreme operating temperature
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-5℃ ~+50℃
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Limit supply voltage
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AC(90V ~ 264V)
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Technical Parameters
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Wavelength
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1535-1565nm
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Input power range
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-5dBm~+10dBm（normal input -2dBm~+5dBm）
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Output optical power
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26dBm~37dBm
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Optical power stability
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±0.1dBm
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Noise figure
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≤ 6.0dB（Pin=0dB）
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Input return loss
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≥ 45dB
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Output return loss
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≥ 45dB
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C/N
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≥ 50dB
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C/CTB
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≥ 65dB
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C/CSO
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≥ 65dB
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Optical connector
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SC/APC；SC/PC；LC/APC；LC/PC
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Consumption
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≤ 150w
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Size
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428(W)*482(L)*89(H)mm
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Application
◆Analog CATV Transmission
◆FTTH Optical Access
◆Optical Distribution
◆Free Space Optical
◆R&D and Training
