Patent ID: 11860411
Assignee: SOUTHWEST JIAOTONG UNIVERSITY
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 3:
4. The super-compact AWG wavelength division multiplexer according to claim 1, the length difference ΔL of adjacent strip sub-wavelength gratings is calculated according to the following formula:, Δ
    ⁢
    L
   
   =
   
    
     m
     ⁢
     
      
       λ
        
      
      0
     
    
    
     n
     c
    
   
  
  ,
 

wherein m denotes a diffraction order of AWG, λ0 denotes a central wavelength, and nc denotes a mode effective refractive index of arrayed waveguides.