Pockels Cell / Electro-Optic Q-Switches Wavelength 410nm-3500nm
Wavelength 410nm-3500nm Pockels Cells /Electro-Optic Q-switches
1. STC Series BBO Pockels Cells
- Minimal piezoelectric ringing
- Low absorption
- Broad transmission ranges from 200nm to 2000nm
- Compact size
| Part Number | STC-BBO1.8 | STC-BBO2.5 | STC-BBO3.6 | STC-BBO2.8 |
| Dimensions | 25.4×39 | 25.4×39 | 25.4×39 | 20X37.5 |
| Clear Aperture | 1.8 | 2.5 | 3.6 | 2.8 |
| Crystal Size | 2*2*20 | 3*3*20 | 4*4*20 | 3X3X20 |
| Quantity of Crystals | 1 | 1 | 1 | 1 |
| Wavelength range | 410-3500nm | 410-3500nm | 410-3500nm | 410-3500nm |
| Quarter-Wave Voltage | 2400 | 3600 | 4800 | 3600 |
| Operation Wavelength | 1064nm | 1064nm | 1064nm | 1064NM |
| Electrodes | Gold-coated PIN | Gold-coated PIN | Gold-coated PIN | Gold-coated PIN |
| Insertion Loss | <2% | <2% | <2% | <2% |
| Extinction Ratio | ＞1000:1 | ＞1000:1 | ＞1000:1 | ＞1000:1 |
| Capacitance | ＞4 | ＞4 | ＞4 | ＞4 |
| LIDT@1064nm,10ns 10Hz | 500MW/cm2 | 500MW/cm2 | 500MW/cm2 | ＞600MW/cm2 |
| Part Number | STC-2BBO1.8 | STC-2BBO2.5 | STC-2BBO3.6 |
| Dimensions (mm) | 25.4×67 | 25.4×67 | 25.4×67 |
| Clear Aperture (mm) | 1.8 | 2.5 | 3.6 |
| Crystal Size (mm) | 2*2*20 | 3*3*20 | 4*4*20 |
| Quantity of Crystals | 2 | 2 | 2 |
| Wavelength range | 410-3500nm | 410-3500nm | 410-3500nm |
| Quarter-Wave Voltage (V) | 1200 | 1800 | 2400 |
| Operation Wavelength | 1064nm | 1064nm | 1064nm |
| Electrodes | Gold-coated PIN | Gold-coated PIN | Gold-coated PIN |
| Insertion Loss | <2% | <2% | <2% |
| Extinction Ratio | ＞500:1 | ＞500:1 | ＞500:1 |
| Capacitance (pF) | ＞4 | ＞4 | ＞4 |
| LIDT@1064nm,10ns 10Hz | 500MW/cm2 | 500MW/cm2 | 500MW/cm2 |
2. STC Series LiNbO3 Pockels Cells
Our optical grade LiNbO3 crystal has good electro-optic performance, large nonlinear coefficient, good optical uniformity, stable mechanical and chemical properties, no deliquescent, low half-wave voltage, and can be applied to high repetition rate operation. It is high in extinction ratio and laser damage threshold. LN electro-optic Q-switches are widely used in Er:YAG, Ho:YAG, Tm:YAG lasers, and are suitable for low-power Q-switched output, especially in laser ranging. We offer the most compact Q-switches for our customers. Furthermore, we also can custom-design and make the Q-switches according to your specific requirements to meet your various applications.
- Large nonlinear optical coefficient
- Large receiving angle
- Small walk-off angle
- Wide temperature and spectral bandwidth
- High photoelectric coefficient and low dielectric constant
- Non-absorbent, stable chemical and mechanical properties
| Part Number | STC-032855G1 | STC-052855G1 | STC-082855G1 | STC-092855G1 |
| Dimensions, LxWxH, mm | 55x28x24 | 55x28x24 | 55x28x24 | 55x28x24 |
| Clear Aperture, CA, mm | 2.5 | 5 | 8 | 9 |
| Crystal Size, mm | 3x3x25 | 6x6x25 | 9x9x25 | 10x10x25 |
| Quantity of Crystals | 1 | 1 | 1 | 1 |
| Wavefront Distortion | λ/8@633nm | |||
| Quarter-Wave Voltage, V | 885 | 1400 | 2400 | 2700 |
| Operation Wavelength | 1064nm | |||
| Electrodes | Cu/Cr PIN | |||
| Insertion Loss | <3% | |||
| Extinction Ratio | ＞500:1 (LN); ＞200:1 (MgO:LN) | |||
| Capacitance, pF | <5 | |||
| LIDT@1064nm,10ns 10Hz | ＞100MW/cm2(LN); ＞300MW/cm2(MgO:LN) | |||
3. STC Series DKDP Pockels Cells
DKDP electro-optic Q-switches (Q-switch, Pockels Cells) are widely used in high-power, narrow-pulse (<10ns) laser systems due to their unique physical properties and excellent optical quality.
The DKDP crystal is a uniaxial crystal with excellent optical quality with an extinction ratio of ＞2000:1 (measured using a 632 nm He-Ne laser) with a wave front distortion of 98%. The DKDP electro-optic Q-switching capacitance is small (about 3-5pF), so that the rise time is short (<0.5ns), and a narrow pulse width laser beam can be achieved during Q-switching. Compared with the widely used electro-optic crystals on the market, DKDP crystals have higher damage thresholds (＞1GW/cm2) under optical conditions of 10ns pulse width, 1064 nm wavelength and repetition rate 10Hz.
- Wave front distortion: low capacitance
- Short rise time: ~3pf
- High transmittance: ＞98%
- High damage threshold: ＞1GW/cm²
- No static birefringence, no photorefractive damage
- Anti-reflective coated quartz window
- Resistant to ambient temperature shock and excellent electro-optic performance
| Part Number | STC-DK10 | STC-DK12 | STC-DK25 | STC-DK30 | STC-DK50 |
| Dimension | D25x39mm | D25x39mm | D55X80mm | D55X80mm | NIL |
| Clear Aperture | 10mm | 12mm | 25mm | 30mm | 50mm |
| Quarter-wave Voltage | 3200V | 3200V | 6500V | 6800V | 7500V |
| Electrodes | PIN | PIN | Cu/Cr | Cu/Cr | Cu/Cr |
| Insertion Loss | <2% | <2% | <2% | <3% | <5% |
| Extinction Ratio | ＞2500:1 | ＞2500:1 | ＞155:1 | ＞1000:1 | ＞700:1 |
| Capacitance | <5 pF | <5 pF | <12pF | <15pF | <35pF |
| LIDT @1064nm, 10ns, 10Hz | ＞800MW/cm2 | ＞800MW/cm2 | ＞850MW/cm2;
＞1GW/cm2 @500ps |
＞850MW/cm2;
＞1GW/cm2 @500ps |
＞850MW/cm2;
＞1GW/cm2 @500ps |
We can custom-design and –make specific Q-switches such as cubic outlook, nitrogen encapsulated, lead-wire electrodes etc as follows. Please send us your detailed requirements via email or phone.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.