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CY0495 Beta-barium Borate (BBO) Maximize

CY0495 Beta-barium Borate (BBO)

Catalog No.CY0495
Surface Quality10/5 scratch/dig per MIL-O-13830A
Perpendicularity 5 arc minutes

Beta-barium Borate (BBO) is a very important nonlinear crystal because of the broad phase-matching range and useful optical transmission. It has a high damage threshold, wide temperature-bandwidth, and low thermo-optic coefficient. BBO can be widely used in medical, military and meteorology fields.

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Beta-barium Borate BBO Description

Alpha-Barium Borate (barium metaborate) is a nonlinear crystalline solid used in photo optic applications. Barium borate (BBO) is a nonhydroscopic and chemically stable material. Crystallization takes place in two phases, alpha and beta, and the phase transition temperature equals 925±5°C. The higher temperature phase-alpha is centric symmetrical within its crystal structure, whose square nonlinearity tensor components are identically equal to zero. In contrast to the alpha-phase, the Beta-phase of BBO is non-centric symmetrical and the crystals grown in this phase possess nonlinear optical properties.

Beta-barium Borate BBO Specification

Aperture

1x1 ~ 15x15mm

Length

0.01 ~ 25mm

Phase Matching Angle θ and φ

Determined by different kinds of harmonic generation

Phase Matching Type

Type I or Type II

End Configuration

Flat or Brewster or Specified

Coating

P-coatings, AR-coatings, and mounts

Angle Tolerance

Δθ< ± 0.5°; Δφ< ±0.5°

Dimension Tolerance

(W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2mm/-0.1mm)

Flatness

λ/8 @ 633nm

Surface Quality

10/5 scratch/dig per MIL-O-13830A

Parallelism

better than 20 arc seconds

Perpendicularity

5 arc minutes

Wavefront Distortion

less than λ/8 @ 633nm

Clear Aperture

> 90% central area

 

Beta-barium Borate BBO Applications

  • Second, third, fourth and fifth harmonic generation of Nd:YAG and Nd:YLF lasers
  • Frequency-doubling, -tripling and -mixing of Dye lasers
  • Second, third and fourth harmonic generation of Ti: Sapphire and Alexandrite lasers
  • Optical parametric amplifier (OPA) and optical parametric oscillators (OPO)
  • Frequency-doubling of Argon ion, Cu-vapor and Ruby lasers.




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