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Your present location:HomeproductsProductQ-Switch > RTP Pockels Cell
  • Name: RTP Pockels Cell
  • No.: 121
  • Update: 2014-08-01
  • Views : 528

RTP (Rubidium Titanyle Phosphate – RbTiOPO4) is an isomorph of KTP crystal which is used in nonlinear and Electro Optical applications. It has advantages of higher damage threshold(about 1.8 times of KTP), high resistivity, high repetition rate, no hygroscopic and no piezo-electric effect. Its high electrical resistivity is important for many electro-optical applications. Its transmission range is 350nm to 4500nm.

Through years of research and development, CRYSTECH has achieved great advances in growing techniques of RTP crystals.  We are able to provide excellent RTP crystals both in matched pairs or single crystals.

APPLICATION:

Q-switch (Laser Ranging, Laser Radar, medical laser, Industrial Laser)

Laser power/phase modulation

Pulse Picker

ADVANTAGE:

an excellent crystal for Electro Optical applications at high repetition rate

Large nonlinear optical and electro-optical coefficients 

Low half-wave voltage

No Piezoelectric Ringing 

high damage threshold; 

High Extinction Ratio 

Non-hygroscopic 

 

 

Dimension Tolerance

W(+/-0.1) * H(+/-0.1) * L(+0.5/-0.1) mm

Angle Tolerance

+/-0.15°

Perpendicularity

≤10′

Scratch / Dig

20/10

Chamfer

≤0.2mmx45°

Parallelism

≤5″

Chip

≤0.1mm

Flatness

λ/10@633nm

CA

≥90%

TWD

λ/6@633nm

Electrode

Ti  or  Au

Extinction Ratio

>20dB

   

Coating

AR@1064nm(R<0.2%),  or customized upon request

Damage Threshold

600MW/cm² 10ns 10Hz at 1064nm

 

 

 

P/N

Cut angle

Size (mm)

P/N

Cut angle

Size (mm)

RTP-Y-225

Y-CUT

2x2x5

RTP-X-445

X-CUT

4x4x5

RTP-Y-228

Y-CUT

2x2x8

RTP-X-448

X-CUT

4x4x8

RTP-Y-2210

Y-CUT

2x2x10

RTP-X-4410

X-CUT

4x4x10

RTP-Y-335

Y-CUT

3x3x5

RTP-X-555

X-CUT

5x5x5

RTP-Y-338

Y-CUT

3x3x8

RTP-X-558

X-CUT

5x5x8

RTP-Y-3310

Y-CUT

3x3x10

RTP-X-5510

X-CUT

5x5x10

RTP-Y-445

Y-CUT

4x4x5

RTP-X-665

X-CUT

6x6x5

RTP-Y-448

Y-CUT

4x4x8

RTP-X-668

X-CUT

6x6x8

RTP-Y-4410

Y-CUT

4x4x10

RTP-X-6610

X-CUT

6x6x10

RTP-X-225

X-CUT

2x2x5

RTP-X-775

X-CUT

7x7x5

RTP-X-228

X-CUT

2x2x8

RTP-X-778

X-CUT

7x7x8

RTP-X-2210

X-CUT

2x2x10

RTP-X-7710

X-CUT

7x7x10

RTP-X-335

X-CUT

3x3x5

RTP-X-885

X-CUT

8x8x5

RTP-X-338

X-CUT

3x3x8

RTP-X-888

X-CUT

8x8x8

RTP-X-3310

X-CUT

3x3x10

RTP-X-8810

X-CUT

8x8x10

Physical and Optical Properties

 

 

Crystal structure

Orthorhombic

Cell Parameters

a = 12.96 Å; b =10.56 Å; c =6.49 Å

Mohs hardness

5

Density, g/cm3

3.6

Melting Point:

~ 1000˚C

Ferroeletric transition temp.

~ 810°C

Color

Colorless

Thermal Expansion Coefficients (/K) 

αx=1.01x10-5, αy =1.37x10-5, αz =-4.17x10-6

Dielectric Constant

Eeff= 13.0

Thermo-optical coefficients (dλ/dT)

-0.029 nm / °C

Electro-optic constants

Y-cut: r51=38.5 pm/V

X-cut: r33=35 pm/V,r23=12.5 pm/V, r13=10.6 pm/V

Nonlinear Coefficients:

d15 = 2.0 pm/V; d24 = 3.6 pm/V; d31= 2.0 pm/V

d32 = 3.6 pm/V; d33 = 8.3 pm/V

Electrical Resistivity

around 1011-1012ohm·cm

Hygroscopic

no

Static Half Wave Voltage at 1064 nm

 

4x4x20 mm: 1,600 V

6x6x20 mm: 2,400 V

Transmitting range:

350~4500 nm

Sellmeier equations(λ in um)

nx2=2.15559 + 0.93307[1-(0.20994/λ)2] - 0.01452λ2
ny2=2.38494 + 0.73603[1-(0.23891/λ)2] - 0.01583 λ2
nz2=2.27723 + 1.11030[1-(0.23454/λ)2] - 0.01995λ2

Absorption coefficient:

< 0.05 % / cm @ 1064 nm < 4 % /cm @ 532 nm