Where to Buy Q Switches

Our acousto-optic Q-switches are rugged, reliable, and long-lasting, backed by millions of hours of service in the field.

We offer low insertion loss, highly efficient acousto-optic Q-switches capable of handling very high peak power, and will draw on our 35 years of experience to match the cavity length, repetition rate, wavelength, beam diameter, polarization state and output power of a laser to the best acousto-optic Q-switch solution.

See us at SPIE Photonics 2024 in San Francisco, January 30 – February 1 (booth 1040)!

Raicol Crystals offers electro-optic modulators based on RTP (with a temperature compensating design) or BBO, which can also be used for Q-switching of lasers.

Besides, we supply super-polished LBO crystals which can be used as the center piece of an electro-optic modulator. With its high resistance to laser-induced damage, LBO is suitable for Q switching of high-power lasers. We offer highly homogeneous crystals with up to 100 × 100 mm² and very low bulk absorption.

See us at SPIE Photonics 2024 in San Francisco, January 30 – February 1 (booth 4223)!

Laserton offers electro-optic Q switches based on KTP, RTP, BBO or KD^*P Pockels cells. We also make devices with a thermally compensated double crystal design.

Besides, Laserton offers Er:Yb:glass gain chips with integrated passive Q switches (saturable absorbers).

Shalom EO offers Pockels cells made from DKDP, BBO crystals and LiNbO₃ or MgO:LiNbO₃ crystals:

• Our DKDP Pockels cells have a high damage threshold and can be used in a wide spectral range from 0.3 to 1.1 μm; it is often used in medical, cosmetic and industrial lasers. Apertures up to 50 mm are available.
• Our LiNbO₃ and MgO:LiNbO₃ Pockels cells are excellent choices for ultraviolet (UV) lasers to infrared lasers with long operating wavelengths up to 4 μm. LiNbO₃ Pockels cells are specially preferable for Er:YAG, Ho:YAG and Tm:YAG lasers.
• Our BBO Pockels cells have significant advantages in terms of laser power handling abilities, temperature stability, and substantial freedom from piezoelectric ringing. BBO Pockels cells are specially suitable for high repetition rate lasers up to 1 MHz.

Hangzhou Shalom EO also offers polished and AR-coated DKDP, BBO and LiNbO₃ and MgO:LiNbO₃ crystals with Cr-Au electrodes used in EO and AO Pockels cells.

See us at SPIE Photonics 2024 in San Francisco, January 30 – February 1 (booth 2126)!

ALPHALAS offers a combination of high-speed, high voltage Pockels cell drivers with a Pockels cell for active Q-switching, designed for all standard laser wavelengths. Rise times below 1 ns and amplitudes > 10 kV cover even the most demanding applications. Repetition rate can be as high as 100 kHz.

The acousto-optic Q-switches from ALPHALAS have the advantage to operate in the MHz repetition rate range where the electro-optical Q-switches can operate only at the cost of considerable technical efforts and complex water-cooled design.

The passive Q-switch alternative has the advantage of simplicity, durability and low cost when compared with the active Q-switching alternative. Cr⁴⁺:YAG, V³⁺:YAG and Co-spinel (Co²⁺:MgAl₂O₄) cover the spectral range from 900 nm to 1600 nm. Most Q-switching crystals are available from stock.

We produce KTP, KD^*P and BBO Pockels cells for high repetition rate Q-switching. Our Pockels cells can be supplied with mounting stages, drivers and power supplies.

See us at SPIE Photonics 2024 in San Francisco, January 30 – February 1 (booth 1527)!

Artifex Engineering offers customised Pockels cells, available as DKDP (KD*P), MgO:LiNbO₃ and BBO. Our Pockels cells feature low insertion loss, high damage threshold. These are cost effective units at OEM prices. We also offer a range of standard Pockels cells with an aperture of 6 mm to 12 mm diameter. Visit our product page for more information. We look forward to your inquiry.