1064nm AR Coating Passive Q Switch Cr4+:YAG Crystal with 500 MW/cm² Damage Threshold and 3-20mm Size Range

Price Negotiable

Price: $5-$500

MOQ: 1pc

Delivery Time: 4-5 weeks

Brand: Crystro

Product Description

1064nm AR Coating Passive Q Switch Cr4+:YAG Laser Crystal

Product Overview

Cr4+:YAG Crystal serves as an exceptional passive Q-switching solution for diode-pumped or lamp-pumped Nd:YAG, Nd:YLF, Nd:YVO4, and other Nd and Yb doped lasers operating within the 0.8 to 1.2 µm wavelength range. These passive Q-switches (saturable absorbers) generate high-power laser pulses without requiring electro-optic Q-switches, resulting in more compact packaging and eliminating the need for high-voltage power supplies.

Key Advantages

Exceptional chemical stability and operational reliability
Simple operation and integration
High damage threshold exceeding 500 MW/cm²
Compact, high-power solid-state passive Q-switch design
Long operational lifetime with excellent thermal conductivity

Primary Applications

Passively Q-switched lasers for laser rangefinders, LIDAR, and LIBS systems
Laser systems requiring short pulse generation

Technical Specifications

Parameter	Specification
Orientation	<100> within 5° or <110> within 5°
Initial Absorption Coefficient	0.1-8.5 cm @ 1064nm
Initial Transmittance	3%-98%
Size Range	Diameter: 3-20mm, H×W: 3×3-20×20mm
Parallelism	≤ 20"
Perpendicularity	≤ 15′
Flatness	< λ/10
Surface Quality	20/10 (MIL-O-13830A)
Wavelength Range	950-1200nm
AR Coating Reflectivity	≤ 0.2% (@1064nm)
Damage Threshold	≥ 500 MW/cm² (10ns, 1Hz at 1064nm)
Dimensional Tolerances	Diameter: ±0.05mm, Length: ±0.5mm, Chamfer: <0.1mm @ 45°

Material Properties

Property	Value
Chemical Formula	Cr4+: Y₃Al₅O₁₂
Crystal Structure	Cubic
Hardness	8.5
Melting Point	1970°C
Density	4.55 g/cm³
Thermal Conductivity @ 25°C	0.14 W·cm⁻¹·K⁻¹
Thermal Expansion Coefficient	8.2 × 10⁻⁶/°C <100>
Young's Modulus	7.7 × 10⁶ <100>
Thermal Shock Resistance	790 W·m⁻¹