Hot Sale Catv Amplifier 1550nm Optical Amplifier 8 port WDM EDFA

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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...

Quantity :

Brand : DIGICAST

Product Type : EDFA

Availability : 1000 In Stock

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

Using erbium ytterbium co-doped double-clad fiber technology
Built-in lownoise preamplifier, EDFA cascading unnecessary, greatly reduces the deterioration of CNR and MER;
Output port optional:LC connector 32 ways optional.
The front panel can be flexibly removed and replaced according to the number of output ports.
The front panel key can set up and modify the device performance parameters to meet different network design requirements;
The front panel indicator lights monitor and instruct the running status of device parameters in real time,easy to find problems in time;
The total output power is optional: the highest total outputis 6.5W (38dBm) ;
Low noise figure: < 6dB @ 0dBm input;
The perfect network management interface, conforms to the SNMP network management protocol;
Dual power supply hot backup structureimproves the system reliability;
The output power +0.5~-4dBm is adjustable;
The 144*32 blue dot matrix LCD display is used to realize parameter on-site monitoring;

Technical Parameters

Item		Unit	Technical parameter	Remark
CATV wavelength		nm	1535~1565	Center wavelength 1550nm
PON OLT wavelength		nm	1310/1490 or 1270/1577	Customizable
CATV Input optical power		dBm	-10dBm ~ +10dBm	suggested value -5dBm~+10dBm
Max output power		dBm	38	1U rack
Optical power stability		dB	±0.1
Niose figure		dB	≤ 6	@+0dBm Input，λ=1550nm
Reflection loss	Input	dB	≥ 45
Reflection loss	Output	dB	≥ 45
OSW	Input ports		2
	Insertion loss	dB	≤1.0
	Switching time	s	＜0.5
Optical connector type			SC/APC；SC/PC；LC/APC；LC/PC	Customizable
C/N		dB	≥ 50	The test conditions are performed by GT/T 184-2002.
C/CTB		dB	≥ 63
C/CSO		dB	≥ 63
Supply voltage		V	AC110V/220V(90V ~ 265V) or DC48V（38- 58V）
Equipment power consumption		W	＜ 70
Working temperature		℃	-5 - +42
Max relative humidity		%	Maximum 95% without condensing
Storage temperature		℃	-30 ~ +70
Max storage relative humidity		%	Maximum 95% without condensing
Dimensions		mm	337(W)482(L)44(H)
Packing size (1 set)		mm	487(W)582(L)110(H)

Application

The DMB-8200 series 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.