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BBO SPDC Crystals

BBO SPDC Crystals
BBO SPDC Crystals

Pump wavelength range: 248 - 800 nm.
  Common pumps:
   ~ 390 - 415 nm (Diode lasers, Ti:Sapphire lasers)
   ~ 351 - 355 nm (THG of Nd: lasers)

Standard crystals are designed for Type I or Type II degenerate SPDC
  Half opening angle between signal/idler for Type I: 3o
  Half opening angle between conjugated directions for Type II: 5o

Crystals for the opening angle = 0o (collinear phase matching) or other angles
  are availble upon request.   

Non-degenerate SPDC crystals are available upon request.
Aperture sizes: 5x5 mm, 8x8 mm. OD 1" mounted.


 

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Specifications of  BBO SPDC crystals:
 

Wavefront distortion: less than λ/8 @ 633 nm
Clear aperture: > 90% central area
Flatness: λ/8 @ 633 nm
Scratch/Dig: 10/5 to MIL-O-13830A
Parallelism: better than 20 arc seconds
Angle tolerance:   Δθ < +/-0.25o, Δφ < +/-0.25


Coating: 

AR@405/810 nm for 405nm pumped SPDC crystals
P-coating for pumps other than 405nm unless coating is specified.

 

 

(1) Configuration of Mounted BBO Crystal for Type I SPDC:


(1) Configuration of Mounted BBO Crystal for Type II SPDC:
 

 

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