Evertz Microsystems Ltd.

光能计算工具

对一套光纤的发射和接收设备来说, 系统设计者最关心的问题是最大可连接的长度.

To use the Optical Power Budget Calculator select a launch power and receiver sensitivity, then enter values for other required information (Link Length, Number of Patch Points, etc.)

可以尝试用光纤设备选择指南来帮助选择.

发射 / 接收
Description: Transmitter: Optical Output Power
Standard 1310nm FP
How do I find a transmitter's optical output power?
dBm
  Receiver: Optical Sensitivity
How do I find a receiver's optical sensitivity?
dBm
最大允许损失: dBm
信号丢失
Valid for single-mode applications only. For multi-mode applications, please contact the factory.

光纤丢失

连接长度: km   X   ( dB/km )[1]
dB

Patch Point Connector Loss

Patch Points:   X   0.5 dB / Patch-Point
dB

无源设备衰减

Add
dB

安全系数

推荐至少 2dB
dB
          系统总丢失 dB
预留的敏感系数[2] dB
  1. 衰减计算是在 Corning SMF 28 单模光缆
  2. 预留的敏感度最好大于 3dB. 然而, 每个系统工程师可以根据不同情况来决定是否接受更小的安全系数.
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