# RF Wireless World

## Home of RF and Wireless Vendors and Resources

One Stop For Your RF and Wireless Need

## Fiber Loss Margin Calculator | Fiber Loss Margin Formula

This page covers Fiber Loss Margin calculator. The fiber loss margin formula is also mentioned.

LED Power (PL), mWatt (input1) :

LED to fiber loss (Lsf), dB (input2) :

Fiber loss (FL) , dB/km (input3) :

Fiber Length (L) , Km(input4) :

Connector loss (Lconn) , dB (input5) :

Fiber to detector loss (Lfd), dB (input6) :

receiver sensitivity (Ps), dBm (input7) :

Fiber Loss margin (Lm) , dB (Output1):

Example:
INPUTS : PL = 2 mW, Lsf=3 dB, FL = 0.5 dB/Km, L = 40 km, Lconn = 1 dB, Lfd = 3 dB, Ps = -36 dB
OUTPUT: Loss Margin ( Lm ) = 12.010 dB

### Fiber loss margin formula/equation

Following equation/formula is used for fiber loss margin calculation. Also refer difference between LED and Laser.

### Useful converters and calculators

Following is the list of useful converters and calculators.

dBm to Watt converter
Stripline Impedance calculator
Microstrip line impedance
Antenna G/T
Noise temp. to NF