1550nm EDFA
CATV 掺铒光纤放大器与1550nm外调制式光发射机配合使用，实现远距离光中继传输。多种不同的光功率输出（13-23dBm）可为网络设计者提供最经济有效的搭配规划。
CATV erbium-doped fiber amplifier works with 1550nm external modulation transmitter, realizes remote relaying transmission. Many kinds of optical output power can provide the most efficient configuration for the network designer
特点 Features
.
进口高品质掺铒光纤及980nm/1480nm高功率泵浦激光器
.低噪声系数
.高信号增益
.输入输出光隔离器
.输出功率范围13～23dBm
.可靠的光功率输出稳定电路及激光器热电致冷器温度控制电路
.微电脑自动监控电路，实时精确监控光输出功率和泵浦激光器工作状态
.19″1U标准机架；前面板VFD显示
.. RS-232/485接口，可实现网管监控
Adopting high-quality Pump Laser diode and Erbium-Doped optical fiber;
Advanced APC and ATC circuit to ensure the performance;
Low noise figure and high gain;
Input & output optical isolator;
Output power: 13-23dBm;
1U 19’ standard case with VFD in front panel;
High efficiency switches power supply;
RS232/485 interface optional for remote monitoring and control
技术参数
Technical Parameter
光特性
Optical Parameter
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光波长 wave length
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1540-1560nm
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光输出功率 optical output power
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13-23dBm
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光输出稳定度optical output stability
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±0.5dB
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输入光功率 optical input power
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-4~+7dBm
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噪声系数 noise figure
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<4.5dB (0dBm optical input)
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偏振灵敏度 polarization sensitivity
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<0.2dB
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偏振模式色散polarization dispersion
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<0.5PS
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光反射损耗 optical return loss
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>40 dB
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光连接器形式 connector
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FC/APC or SC/APC
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系统特性
System Parameter
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C/N
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≥52dB
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CTB
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≥80dB
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CSO
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≥75dB
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一般特性
General Parameter
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电源电压 input voltage
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160~265Vac
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工作温度 operating temperature
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-10~+50℃
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尺寸 Dimensions
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423×330×45m⊃3;
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注1测试条件：在规定的链路损耗下， 550MHz内配置59个PAL-D模拟电视频道信号， 550MHz~750/862MHz传送数字调制信号，数字调制信号电平（8MHz带宽内）比模拟信号的载波电平低10dB，光接收机输入光功率为-1dBm。
Note 1:
In the prescriptive link loss,59 PAL-D analog CHs,550MHz-750/860MHz conveys digital modulated signals, digital modulated signals level (within 8MHz) is 10dB lower than analog carrier, input power of optical receiver is -1dBm.
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