pk10开奖记录

>

pk10开奖记录 LiNbO3

pk10开奖记录 LiNbO3 is widely used as electro-optic modulators and Q-switches for Nd:YAG, Nd:YLF and Ti:Sapphire lasers as well as modulators for fiber optics.


  • Introduction
  • Download
  • Feedback

The following table list the specifications of a typical LiNbO3 crystal used as Q-switch with transverse E-O modulation. The light propagates in z-axis and electric field applies to x-axis. The electro-optic coefficients of LiNbO3 are: r33 = 32 pm/V, r31 = 10 pm/V, r22 = 6.8 pm/V at low frequency and r33 = 31 pm/V, r31 = 8.6 pm/V, r22 = 3.4 pm/V at high electric frequency. The half–wave voltage: Vπ=λd/no3γcl, γc=(ne/no)3γ3313.

 

LiNbO3 Q-Switch Specifications

Size9×9×25mmor 4×4×15mm3
Other size is available upon request        
Tolerance of sizeZ-axis:±0.2mm
X-axis and Y-axis:±0.1mm
Chamfer<0.5mm @ 45°
Accuracy of orientation    Z-axis:<±5′,X-axis and Y-axis:<±10′
Parallelism<20″
Finish10/5
Flatnessλ/8 at 633nm
AR-coatingR<0.2% @ 1064nm
ElectrodesGold/Chrome plated on X-faces
Wavefront distortion<λ/4 @ 633nm
Extinction ratio>400:1 @ 633nm,Φ6mm beam

 

    LiNbO3 is also a good acousto-optic crystal and used for surface acoustic wave (SAW) wafer and A-O modulators. CASTECH provides acoustic (SAW) grade LiNbO3 crystals in wafers, as-cut boules, finished components and custom fabricated elements.

 

Typical SAW Properties

 

Cut TypeSAW
Velocity
νs (m/s)

Electromechanical
Coupling Factor

κ2s (%)

Temperature
Coefficient of Velocity

TCV (10-6/℃)

Temperature
Coefficient of Delay
TCD (10-6/℃)
127.86° Y-X39705.5-6078
Y-X34854.3-8595

 

 

Typical Specifications

 

                                    Type

Specifications

BouleWafer
DiameterΦ3″Φ4″Φ3″Φ4″
Length or Thickness (mm)≤100mm≤50mm0.35-0.5mm
Orientation127.86°Y,64°Y,135°Y,X,Y,Z,and other cut                   
Ref. Flat OrientationX,Y
Ref. Flat Length22±2mm32±2mm22±2mm32±2mm
Front Side Polishing
Mirror polished 5-15Å
Back Side Lapping
0.3-1.0μm
Flatness(μm)
≤15
Bow(μm)
≤25

CASTECH can offer other sizes and specifications of wafers upon request.


Dear visitors! Please submit your feedback information!

  • *Name:
  • Company:
  • *Tel:
  • *Email:
  • *Message:
  • *Code:


pk10开奖记录Copyright© CASTECH Inc. all rights reserved 闽ICP备12014619号 Copyright 2012-2017 51helpdesk.com

+-