wavelength vs optput power

[Amit Garg]

when I simulate the basic optical communication system and try to observe the wavelength vs output power variations then I found it is flat over a range of frequencies (1200nm to 1600nm)why???

plz find the .osd file

Attachments:

1. wavelength-vs-optput-power.osd

[Damian Marek]

The attenuation property, in the optical fiber, is set to constant, so all wavelengths are experiencing the same loss.

Regards

[Amit Garg]

I have tried by taking attenuation data type from file (not constant) but I am getting the same result.
can you please send me the some program me file (.OSD) that gives result (something similar )to the curve as given attached file

Attachments:

1. 

   NAB_Handbook-Fiber_Optic_Transmission_Systems_img_6.jpg
   

[Damian Marek]

Hi,

If you switch the Optical Fiber component from Constant to From File the loss will act on wavelengths differently. I have attached a simple project to demonstrate this.

I’m not sure we have a dat file for that entire range, but for SMF-28 we do have the range from 1.4 um to 1.65 um. I have attached the dat file as well, so that you can look at the structure.

Regards,
Damian

Attachments:

1. LossofWavelengths.osd
2. Optical-fiber-data-SMF-28_Attenuation.txt

[Author]

Posts