YCOB

Product Details

Description

Yttrium Calcium Oxyborate (YCa4O(BO3)3 or YCOB) is a good nonlinear crystal which is widely used in high power laser system. YCOB crystals have good nonlinear optical properties, such as larger effective NLO susceptibilities, larger Temperature Acceptance, relatively high damage threshold, less parametric luminescence, smaller thermal expansion coefficient, less anisotropy and high temperature piezoelectric properties. Besides, it is easy to grow large size crystal with high quality. YCOB crystal is suitable for applications in high energy and high power laser fieldsincluding second-harmonic generation (SHG), third-harmonic generation (THG), optical parametric oscillator (OPO), optical parametric amplification (OPA),optical parametric chirped-pulse amplification (OPCPA). Another application is in the field of piezoelectric devices at high temperature. YCOB crystal has very high electric resistivity that can be fabricated as piezoelectric sensors working at the temperature as high as 1000ºC in aerospace engines.  

Features:
● No deliquescence
● Larger effective NLO susceptibilities
● Larger Temperature Acceptance
● High laser induce damage threshold
● Less parametric luminescence (three orders less)
● Smaller thermal expansion coefficient and less anisotropy
● Very high electric resistivity
Applications
● Second-harmonic generation (SHG)
● Third-harmonic generation (THG)
● Optical parametric oscillator (OPO)
● Optical parametric amplification(OPA)
● Optical parametric chirped-pulse amplification (OPCPA)
● Piezoelectric devices


MetaLaser YCOB Crystals
● Grown by CZ method;
● Maximal Size: dia100mm
● Custom design prouction is available

Specification

Polishing Specification for Laser Grade

Orientation Tolerence

< 0.5°

Thickness/Diameter Tolerance

±0.05 mm

Surface Flatness

<λ/8@632nm

Wavefront Distortion

<λ/4@632nm

Surface Quality

10/5

Parallel

30〞

Perpendicular

15ˊ

Clear Aperture

>90%

Chammfer

<0.2×45°


Crystal  Properties

Crystal Structure

Monoclinic, Point group m

Lattice Parameter

a = 8.0770 Å, b = 16.0194 Å , c = 3.5308 Å , β = 101.167º, Z = 2

Melting Point

About 1510 ℃

Mohs Hardness

6 ~ 6.5

Density

3.31 g/cm3

Thermal Conductivity

2.6 W/m/K (║X), 2.33 W/m/K (║Y), 3.1 W/m/K (║Z)

Thermal Expansion Coefficient

ax = 10.8•10-5/K, ay = -8.8•10-5/K, az = 3.4•10-5/K


Phase Match Parameters

Application

Theta

Phi

deff [pm/V]

2nd Harmonic Generation (SHG)

30.8°

180°

1.14

3rd Harmonic Generation (THG)

106°

77.2°

NA

Optical Parametric Amplifier (OPA)

28°

180°

1.32

With Piezoelectric Crystals for sale, it is one of the leading manufacturers and supplies of good ycob, welcome to buy and wholesale products at good price from our factory.

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