Where to Buy Q Switches

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.

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.

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.

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.

Raicol Crystals offers a wide range of electro-optic solutions, including RTP, BBO, i-RTP, and LN, catering to diverse electro-optic applications. Some of those are particularly suited for Q switching of lasers:

• RTP (rubidium titanyl phosphate) is an excellent choice for electro-optic applications, such as Pockels cells, shutters, Q-switches, phase modulators, pulse pickers, and more. The outstanding electro-optical parameters enable extremely fast switching with rise/fall times under 1 nanosecond and high repetition rates exceeding 1 MHz, all without ringing.
• BBO (beta barium borate) crystals combine a wide transparency range, high damage threshold, and excellent chemical and mechanical properties, making them ideal for various electro-optic applications.

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).

Our customized semiconductor saturable absorber mirrors (SESAMs) can be used as passive Q-switches in applications where short (max. few nanoseconds), high repetition rate and relatively low-energy pulses are required.

Contact us for the optimal customized SESAM for your application.