Pockels Cells & Q-Switches

Precision Electro-Optic Solutions for Advanced Applications

Highest Quality Crystals

Quantum Technology offers a range of high-performance Pockels cells and Q-switches, crafted with premium strain-free electro-optic (E-O) crystals. Designed for applications from high-speed Q-switching to intra-cavity modulation, our products deliver reliability and precision across a wide spectral range. Explore our series below, featuring BBO, KD*P, Lithium Niobate, and RTP crystals.

Product Series Overview

Series QS: BBO Super-Switches

(Transverse Electrode, 200nm–1064nm)

Ideal for high-speed, high-power Q-switching, the QS series uses BBO crystals with low insertion loss and a damage threshold exceeding 20 KW/cm² (CW). Key features include resonance-free operation, a low capacitance of <2pF for fast rise times in 50-ohm systems, and AR-coated crystal faces with proprietary polymer coatings.

Series QC: KD*P Pockels Cells

(Ring Electrode, 300nm–1064nm)

Designed for low-loss intra-cavity switching, the QC series offers KD*P crystals in 95% and 99% deuteration levels. Available in dry or wet versions with polymer or index-matched coatings for minimal loss.

Applications: Ruby lasers (quarter-wave voltage: 2.2 KV) and Nd:YAG lasers (quarter-wave voltage: 3.2 KV).
Model QC-10: 35mm diameter, 45mm length. Two-crystal versions like QC-10-2 provide lower half-wave voltages.

Series LN: Lithium Niobate Q-Switches

(Transverse Electrode, 800nm–2500nm)

Tailored for intra-cavity Q-switching and modulation, the LN series features dry-type Lithium Niobate crystals with AR-coated faces and windows.

Model LN-9: 9mm aperture, DC switch-out voltage of 1.5 KV at 1064nm.
Model LN-16: 16mm aperture, DC switch-out voltage of 2.0 KV at 1064nm.

Series RT: RTP Crystal Pockels Cells

(Transverse Electrode, 600nm–2100nm)

Built for stable Q-switching and pulse picking at multi-kHz to multi-MHz rates, RTP crystals offer negligible piezoelectric resonances and wide optical bandwidth.

Applications: High-frequency modulation with fast rise/fall times.

Specialty Models

Model QB-8 (Brewster KD*P)

Optimized for low loss and high optical power handling with an 8mm laser beam.

Model MC-10 (Impedance-Matched KD*P)

Designed for picosecond rise-time optical pulse generation in 50-ohm systems with low VSWR. Single-crystal version only.

Model LAP (Large Aperture KD*P)

Features a 50mm aperture for large-scale applications.

Pockels Cell Specifications

Model No.	Material	Aperture	Contrast Ratio	Quarter-Wave Voltage (V1/4) @ 1064nm
QS-3	BBO	3mm	2000:1	3.6 KV
QS-4	BBO	4mm	2000:1	4.7 KV
QC-8	KD*P	8mm	1000:1	3.4 KV
QC-10J	KD*P	10mm	1000:1	3.4 KV
QC-10	KD*P	10mm	1000:1	3.4 KV
QC-16	KD*P	16mm	1000:1	3.5 KV
QC-20	KD*P	20mm	750:1	3.6 KV
QC-24	KD*P	24mm	500:1	3.8 KV
LN-9	LiNbO3	9mm	100:1	1.5 KV
LN-16	LiNbO3	16mm	100:1	2.0 KV
QB-8	KD*P	8mm	1000:1	3.4 KV
MC-10	KD*P	10mm	1000:1	3.4 KV
LAP-50	KD*P	50mm	250:1	3.9 KV

Why Choose QTI in 2025?

Our systems are designed with your needs in mind—modular, upgradeable, and built to last. From regenerative amplification to pulse picking, we ensure precision and reliability in every setup. Plus, our in-house crystal growth gives us unmatched control over quality, so you get the best performance every time.

Have Questions or Need a Custom Solution?

This is just the start of what we can do. At QTI, we specialize in both standard and custom systems to meet your unique challenges. Ready to optimize your laser setup? Contact us today for expert guidance—call toll-free at 1-800-232-4291 or email us at [email protected]. Let’s make your project a success!