THORLABS Redstone OSA305 - Apodization Functions

Redstone™ Optical Spectrum Analyzer Chapter 16: Appendix
Page 79 STN053070-D02
16.2. Apodization Functions
The following apodization functions are implemented in the OSA software:
Norton-Beer
(Weak)

󰇛

󰇜
  󰇧 


󰇛
 
󰇜

󰇨  󰇧 


󰇛
  
󰇜

󰇨

Norton-Beer
(Medium)

󰇛

󰇜
  󰇧 


󰇛
 
󰇜

󰇨  󰇧 


󰇛
  
󰇜

󰇨

Norton-Beer
(Strong)

󰇛

󰇜
  󰇧 


󰇛
  
󰇜

󰇨

 󰇧 


󰇛
  
󰇜

󰇨

Triangular

󰇛

󰇜
 



  
Cosine

󰇛

󰇜
  
󰇡

  



󰇢
Hann

󰇛

󰇜



  

  

Hamming

󰇛

󰇜
  

  

3-Term
Blackman-
Harris

󰇛

󰇜
  

󰇛  󰇜
  

󰇛  󰇜

4-Term
Blackman-
Harris

󰇛

󰇜
  

󰇛  󰇜
  

󰇛  󰇜
   

󰇛  󰇜

Gaussian

󰇛

󰇜
󰇧


  󰇛󰇛  󰇜󰇜

󰇨
2-Pass Hann

󰇛

󰇜



  

  


In these functions,  denotes the length of the interferogram,  is the index count (from 0 to   ) and  is the
index count from the center of the interferogram (from 󰇛 󰇜 to 󰇛 󰇜).