偏硼酸钡晶体(BBO)

偏硼酸钡晶体(BBO)

The feature for BBO:
  Broadphase-matchable range from 409.6 nm to 3500 nm;
Widetransmission region from 190 nm to 3500 nm;
Largeeffective coefficient for SHG is about 6 times greater than that of KDPcrystal;
High damagethreshold of 10 GW/cm2 for 100ps pulse-width at 1064nm;
High opticalhomogeneity with d = 10-6/cm;
Widetemperature-bandwidth of about 55 °C

Table 1. Harmonic generations using BBO and KD*P

Crystal

1 (mJ)

SHG (mJ)

THG (mJ)

4HG (mJ)

SHG (mJ)

BBO

220

105

69

18.5

5

600

350

140

70

20

KD*P

600

270

112.5

45

/

Table 2. Relevant NLO properties for type I BBO crystal

 

SHG

THG

4HG

5HG

Effective NLO Coefficient (d36(KDP))

5.3

4.9

3.8

3.4

Acceptance Angle (mrad-cm)

1.0

0.5

0.3

0.2

Walk-off Angle(degree)

3.2

4.1

4.9

5.5

Specifications:
Dimension tolerance: (W 0.1mm) x (H 0.1mm) x (L + 0.2mm/-0.1mm)
Wavefront distortion: less than λ /8 @ 633nm
Flatness: λ /8 @ 633nm
Surface Quality: 10/5 to MIL-O-13830A
Parallelism: < 20 arc seconds
Perpendicularity: 5 arc minutes
Angle tolerance: < 0.5, < 0.5
Coating: AR/AR on both sides for single wavelength ordual-wavelength, R<0.2%
Protective coating (P-coating) for high damage and wide wavelength range
Size: as large as 20 x 20 mm and as thin as 0.02mm
Mounting: it will be mounted when thickness less than 2 mm. (Free!)
Quality Warranty Period: one year under proper use

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