Laser Components and Accessories

Crystals and Assemblies


Build high-performance laser systems for defense, industrial, and medical applications, with non-linear crystals, gain crystals, and gain assemblies.

Coherent is a fully vertically integrated laser crystal manufacturer, with comprehensive crystal growth capacity, metrology to consistently minimize absorption, extensive coating facilities, in-house laser damage testing, and assembly capabilities.


Extensive Crystal Production Capabilities

Choose from nearly every type of non-linear and gain crystal currently in use, each available with precisely characterized coatings, plus high precision assemblies.

Product Specifications

Material Type

Crystal Capabilities

Aperture/Length (mm) 

Key Features 

KTP Family

KTP 

KTA 

RTP

30x30 / 50

Absorption < 250ppm/cm @ 1064 nm  

Ideal for OPO applications (KTP/KTA)  

Ideal for EOM’s or intracavity SHG of 1064 nm  

Polishing to scratch/dig of 0/0 and 4 Å RMS  

Borate Family 

LBO 

BBO 

CLBO 

LBO: 90 (diameter)/120  

CLBO: 75 (diameter)  

BBO: 20x20 / 40  

Low to no absorption in visible   

Multiple options for UV generation to < 200 nm  

Vanadate Family 

YVO4

Nd:YVO4

20x20 / 75

Ideal for high peak power lasers  

Each piece measured for bulk absorption  

Available in assembly form for easy integration  

YAG Family  

YAG 

Nd:YAG 

Yb:YAG 

CTH:YAG 

Er:YAG 

Tm:YAG 

Ho:YAG 

Ce:YAG 

Cr4+:YAG 

50-85 (diameter)/50-150 

Cr4+:YAG 40 (diameter)/50

Single and multiple bonding of YAG sections 

Multiple options at 2 µm 

Polishing to scratch/dig 0-0 and < 4 Å RMS surface roughness 

Ideal for high power applications 

Large selection of fluorescence crystals 

Magneto-optic

TGG 

50 (diameter)/75

Low polarization extinction 

Available in low absorption grade 

(Yb)-doped Family

Yb:CALGO 

Yb:KGW 

Yb:KYW 

Yb:LuAG 

Yb:YAG 

Size on request 

Yb:CALGO for shorter pulse length 

Nonlinear and/or Piezoelectric Crystals 

BiBO3

BaTiO3

NBT-BT 

BaTiO3: 10 x 10 

BaTiO3: substrates, standard or single domain 

NBT-BT: extreme piezo coefficient, custom compositions 

Crystals for fluorescence standards 

KEuW 

Ce:YAG 

Diameter 9 mm 

Diameter >40 mm 

Special emission wavelength on request 

Related Products

Resource List