DKDP Pockels Cells-NORTH OPTICS-Laser Components, IR optics, Scintillators, Crystals wafers|A Leading Manufacturer Of Optical Components

DKDP Pockels Cells

High Deuteration (>98.0%) DKDP Crystals

Broad Wavelength Range: 0.3~1.1μm

Maximum Aperture: 50mm

High Transmission: >98%

Pockels Cells with Double DKDP crystals available

Custom Modules Available

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Code	Types	Wavelength	Dimension	Aperture	Extinction Ratio	Laser Damage Threshold	Unit Price	Delivery
2031-004	High ER	Custom	Ф15×18mm	5mm	>5000:1	500MW/cm^2	Inquire	Inquire
2031-005	Customized	Custom	Ф18x25mm	6mm	CP>2500:1; PP>1500:1	>800MW/cm^2	Inquire	Inquire
2031-001	Pin connectors	1064nm	Φ19x29mm	8mm	>2500:1	800MW/cm^2	Inquire	1 week
2031-006	Customized	Custom	Ф18x25mm	8mm	CP>2500:1; PP>1500:1	>800MW/cm^2	Inquire	Inquire
2031-007	Compositive	500-1100nm	60x30x30mm	8mm	>2500:1	>800MW/cm^2	Inquire	Inquire
2031-025	High ER	Custom	Ф19x24mm	8mm	>5000:1	500MW/cm^2	Inquire	Inquire
2031-026	High ER	Custom	Ф19x24.7mm	8mm	>5000:1	500MW/cm^2	Inquire	Inquire
2031-008	High ER	240-1400nm	Ф19×24mm	8mm	>7000:1	750MW/cm^2	Inquire	Inquire
2031-009	High ER	240-1400nm	Ф19×24.7mm	8mm	>7000:1	750MW/cm^2	Inquire	Inquire
2031-002	Pin connectors	1064nm	Φ25x39mm	10mm	2500:1	800MW/cm^2	Inquire	1 week
2031-010	Pin connectors	500-1100nm	Ф25.4x39mm	10mm	>2500:1	>800MW/cm^2	Inquire	Inquire
2031-027	High ER	Custom	Ф25.4x32mm	10mm	>5000:1	500MW/cm^2	Inquire	Inquire
2031-028	High ER	Custom	Ф25.4x39mm	10mm	>5000:1	750MW/cm^2	Inquire	Inquire
2031-011	High ER	240-1400nm	Ф25.4x32mm	10mm	>7000:1	750MW/cm^2	Inquire	Inquire
2031-012	High ER	240-1400nm	Ф25.4x39mm	10mm	>7000:1	750MW/cm^2	Inquire	Inquire
2031-013	High ER	240-1400nm	Ф28x33mm	11mm	>7000:1	750MW/cm^2	Inquire	Inquire
2031-003	Pin connectors	1064nm	Φ28x33mm	12mm	2500:1	800MW/cm^2	Inquire	1 week
2031-024	755nm double connectors	755nm	Ф25.4x39mm	12mm	>2000:1	>850MW/cm^2	Inquire	Inquire
2031-014	755nm triple connectors	755nm	Custom	12mm	>2000:1	>850MW/cm^2	Inquire	Inquire
2031-015	Pin connectors	500-1100nm	Ф25.4x39mm	12mm	>2500:1	>800MW/cm^2	Inquire	Inquire
2031-016	694nm	694nm	Custom	12mm	>2500:1	>800MW/cm^2	Inquire	Inquire
2031-029	High ER	Custom	Ф34.5x41.2mm	12mm	>5000:1	500MW/cm^2	Inquire	Inquire
2031-030	High ER	Custom	Ф25.3x42.5mm	13mm	>5000:1	500MW/cm^2	Inquire	Inquire
2031-017	High ER	240-1400nm	Ф25.3x42.5mm	13mm	>7000:1	750MW/cm^2	Inquire	Inquire
2031-018	Large aperture	1064nm	Ф55x80mm	25mm	>1500:1	>850MW/cm^2	Inquire	Inquire
2031-019	Large aperture	1064nm	Ф55x80mm	30mm	>1000:1	>850MW/cm^2	Inquire	Inquire
2031-020	Large aperture	1064nm	Custom	50mm	>700:1	>850MW/cm^2	Inquire	Inquire
2031-021	Wire connector	Custom	Ф32x41mm	Custom(<12mm)	>2500:1	>800MW/cm^2	Inquire	Inquire
2031-022	Wire connector	Custom	Ф28x33mm	Custom(<12mm)	>2500:1	>800MW/cm^2	Inquire	Inquire
2031-023	Nitrogen encapsulated	500-1100nm	Ф25x36mm	Custom(>10mm)	>5000:1	>1GW/cm^2	Inquire	Inquire

DKDP or KD*P crystals stand out for their high electro-optic coefficients attributing to the high deuteration content, and the high e-o conversion efficiencies render them well-suited for pockels cells Q-switches applications. DKDP crystals also have good transmission at 0.3 to 1.1µm. The operation wavelength range of DKDP (KD*P) Pockels cells for Q-switching applications is 400 nm to about 1.1 μm. Most of the low repetition rate DPSS Nd:YAG lasers and commercial flashlamp-pumped Nd:YAG lasers are equipped with DKDP (KD*P) based Pockels cells for laser cavity Q-switching. With the distinguished merits of excellent mechanical and optical properties, DKDP Pockel cells are often used in lasers of large caliber, high power, and narrow pulse width.

Shanghai North Optics offers the DKDP pockels cells with high deuteration (>98%), low capacitance and fast rise time and high transmission, high extinction ratio, and the largest aperture of 50mm is available.

Features:

Low absorption and high deuteration
Operates in the Longitudinal scheme, so applied voltage does not depend on crystal aperture, hence large apertures could be arranged without increasing the voltage
High damage threshold dielectric AR coating options
For fs applications due to low GVD

Applications:

Pulse picking and Laser cavity dumping
Q-switching of low repetition rate diode-pumped lasers and flashlamp-pumped high energy lasers
OEM laser systems
Medical/cosmetic lasers
Versatile R&D laser platforms
Military & aerospace lasers

Specifications:

Deuteration of DKDP Crystals	>98%	Wavelength Range	300nm to 1400nm
Aperture	≦50mm	Wavefront Distortion	Lambda/8@633nm
Capacitance	~3pF	Quarter Wave Voltage	~3200V
Transmission (@designed wavelength)	>98%

When it comes to practical applications of Pockels cells, one might need to take some additional side effects into account:

Etalon effects might still exist and affect the optical performance if the beam direction is perpendicular to the faces of the crystal, Even when the end faces of the crystal are coated with high-quality AR coatings.
The temperature could significantly affect the obtained phase changes. For example, a Pockels cell set to generate perfect high-contrast amplitude modulation might require readjustments of the operation voltages when the temperature changes. However, there are thermally compensated double-crystal designs that might circumvent the problem.
For an operation with a large beam radius, it is worth paying attention to sort out an optimized design for electrodes (possibly with additional auxiliary electrodes for high uniformity of the generated electric field, as otherwise one may obtain a spatially varying modulation).
Nonlinear crystals often exhibit substantial piezo-electric and electrooptic effects, which can have substantial influences on the performance at high modulation frequencies.
Operating at high power levels, thermal effects may be induced by residual absorption of the crystal. Therefore materials with lower absorption are preferable for high-power applications
The crystals used in Pockels cells are nonlinear crystal materials, they inherently demonstrate considerable optical nonlinearities. For instance, self-phase modulation and nonlinear self-focusing might occur for light pulses with substantial peak power.

Pockels Cell Comparison Chart:

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