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BBO Pockels Cells
BBO Pockels Cells
BBO Pockels Cells
BBO Pockels Cells
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  • BBO Pockels Cells

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Product description:

BBO Pockels cell is a laser device based on electro-optic effect. When a voltage is applied to the electro-optic crystal,the refractive index of the crystal will change and the phase difference caused by the birefringence of the polarized light transmitted along the optical axis will cause the change of polarization state after exiting. The working principle of the BBO Pockels cell is based on the transverse electro-optic effect, so the working voltage can be effectively reduced by changing the size of the BBO crystal. CASTECH provides BBO Pockels cells in a range of configurations to adapt to different use conditions even unique and demanding applications. Due to its low ringing effect, repetition frequency of CASTECH's Pockels cell can go as high as 2 MHz, while by working with CASTECH' driver, its repetition frequency can reach up to 1 MHz. CASTECH also provides BBO Pockels cells with polarizers, wave plates and ceramic plates as requested.

 

Applications:

● Q-switching

● Regenerative amplifier

● Pulse picker

● Cavity dumping

● High speed optical switch

● Beam chopper

● Optical power stabilizer

 

CASTECH products (blue)Contrast Ratio @1 MHz         

 

Typical waveform @1 MHz

  

                                                                   

 

 

Pockels Cells Model Number:BPt-alq-b-w

Type(t)

Effective Clear Aperture(a)

Crystal Length(l)

Cascade type(q)

Optional Accessories(b)

Wavelength(w)

A

(Square)

C

(Round)

S

(Special aperture)

3 (2.6 mm)

4 (3.6 mm)

5 (4.6 mm)

6 (5.6 mm)

7 (6.6 mm)

8 (7.6 mm)

10 (9.6 nm)

12 (11.6 nm)

  114 (1*14 mm)*

  214 (2*14 mm)*

...

A

(20 mm)

B

(25 mm)

C

(16 mm)

D

(14 mm)

...

S

(Single)

D

(Double)

T

(Triple)

...

C

(Ceramic)

L

(Water Cooling)

W

(Wave plate)

B

(Brewster window)

A

(Brewster window & Wave plate)

N

(Nothing)

...

355 nm

532 nm

800 nm

1030 nm

1064 nm

1550 nm

...

*Only applicable to S (special aperture) type products

 

 

  Typical Specifications*

Clear Aperture

Voltage Contrast

Ratio(VCR) @1064 nm

Rise/Fall Time

Cascade Type

Cooling Method

Transmission @1064nm

3~6 mm

≥1200:1

<10 ns

Single

Conduction Cooling

≥99%

3~6 mm

≥1000:1

<10 ns

Double

Conduction Cooling

≥98.5%

7mm

≥500:1

<20 ns

Double

Water Cooling

≥98.5%

8 mm

≥500:1

<20 ns

Double

Water Cooling

≥98.5%

12 mm

≥400:1

<20 ns

Double

Water Cooling

≥98.5%

*Damage threshold:1GW/cm² @ 1064 nm, 10 ns & 50GW/cm² @ 1064 nm, 1 ps, & 200GW/cm² @ 1064 nm, 100 fs

 

 

Housing dimensions(mm):

Water Cooling

BPS

  

 

3AS

3BS

4AS

4BS

3AD

4AD

6AD

A

2.6

2.6

3.6

3.6

2.6

3.6

5.6

B

35

40

35

40

57.7

57.7

57.7

C

17.5

20

17.5

20

17.4

17.4

17.4

 λ/4 voltage

@ 1064 nm

3.5kV

2.8kV

4.9kV

3.9kV

1.8kV

2.5kV

3.7kV

 

 

 

BPA

BPC

       

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