Pockels Cells

1. Pockels Cells

Based on the electro-optic result, when the used electrical area acts on the Pockels cell crystal (electro-optic crystal), the Pockels cell crystal (electro-optic crystal) is like a wave plate whose phase hold-up is associated with the used electric area. The polarization state of the outbound light from the Pockels cell crystal will alter so that the strength and amplitude of the outgoing light from the analyzer are regulated, which is electro-optic modulation, and the inflection device is called a Pockels cell.

2. Pockels cell crystal

The crystals that generate the electro-optical effect are called Pockels cell crystals, that is electro-optical crystals. They each have their benefits. Currently, the primary Pockels cell crystals on the marketplace consist of BBO crystals, DKDP crystals, KTP crystals, as well as LN (LiNbO3) crystals.

(1) BBO crystal

Description: BBO crystal, also referred to as barium metaborate crystal, with chemical formula BaB2O4, is an electro-optic and nonlinear crystal with superb extensive residential or commercial properties.

Attributes: BBO crystal has an extremely wide light transmission variety, a really reduced absorption coefficient, as well as a weak piezoelectric ringing effect; compared with other electro-optical inflection crystals, it has a greater termination ratio, a larger phase matching angle, and also High resistance to light damages threshold, broadband temperature matching and excellent optical harmony are beneficial to improve the stability of laser output power, particularly in the regularity triple of Nd: YAG laser has a large range of applications.

Application: It has a wide variety of associated areas in the third, fourth, and 5th harmonics of Nd: YAG lasers (355nm, 266nm as well as 213nm, specifically), the 2nd and also 3rd harmonics of Ti: Sapphire amplifiers (400nm as well as 266.7 nm) and various other relevant fields. Application. It can likewise be applied to OPO arrangements, optical parametric oscillators, and also electro-optical applications from near-infrared to deep ultraviolet.

(2) DKDP crystal

Description: DKDP (KD * P) crystal, likewise known as potassium deuterium phosphate crystal, chemical formula KD2PO4, is a comprehensive electro-optical crystal product.

Features: KDP and DKDP (KD * P) crystals have the advantages of high resistance to light damage threshold, high electro-optic coefficient, great ecological resistance, compact design, and also ease and modification.

Application: It is commonly used in state-of-the-art areas such as laser regularity conversion, electro-optic inflection, and also electro-optic quick changing, can be used to make low-cost as well as large finished nonlinear components suitable for double frequency (SHG) and also triple regularity (THG) fields.

(3) KTP crystal

Description: KTP crystal, additionally called potassium titanium phosphate crystal, whose chemical formula is KTiOPO4, is a crystal item with outstanding nonlinear and also electro-optical buildings.

Attributes: KTP has the properties of a high electro-optical coefficient as well as a low dielectric constant, which can work at high frequency and be utilized as an electro-optical Q-switched crystal. KTP additionally has excellent frequency-increasing performance:

- Big nonlinear coefficient

- No declination Angle

- High optical damages threshold

- Little modification in phase matching conditions with temperature

Application: made use of medium and little power Nd: YAG and also Nd: YVO4 laser output 1064-532nm laser regularity increasing crystal products.

(4) LN (LiNbO3) crystals

Description: LiNbO3 crystal, likewise called lithium niobate crystal, referred to as LN crystal, is an electro-optical crystal with exceptionally detailed efficiency.

Qualities: Compared to various other electro-optical crystals, the crystal has the advantages of tiny dimension, not easy decidualization, large electro-optical coefficient, vast transparency range, high electro-optical effectiveness, low absorption loss, and also reduced damage limit.

Application: It has a wide range of applications in associated fields, such as electro-optic modulators as well as Q-switches in Nd: YAG, Nd: YLF and Ti: Sapphire lasers and also modulators in optical fibers. At the same time, it can be used in 532nm, 1064nm as well as 2940nm lasers, with regularity doubling above 1000 nm wavelength as well as optical criterion boosting of 1064nm pump light.

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