1. Pockels Cells
Based on the electro-optic effect, when the applied electric 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 related to the applied electric area.
2. Pockels cell crystal
The crystals that create the electro-optical effect are called Pockels cell crystals, that is, electro-optical crystals. They each have their advantages. Presently, the primary Pockels cell crystals on the market consist of BBO crystals, DKDP crystals, KTP crystals, and LN (LiNbO3) crystals.
(1) BBO crystal
Description: BBO crystal, additionally referred to as barium metaborate crystal, with chemical formula BaB2O4, is an electro-optic and also nonlinear crystal with superb extensive properties.
Features: BBO crystal has a really broad light transmission variety, extremely low absorption coefficient, as well a weak piezoelectric buzzing effect; compared with other electro-optical inflection crystals, it has a higher termination ratio, a bigger phase matching angle, and also High resistance to light damage threshold, broadband temperature matching and outstanding optical harmony are beneficial to improve the stability of laser output power, specifically in the frequency triple of Nd: YAG laser has a variety of applications.
Application: It has a vast array of associated fields in the 3rd, 4th as well as fifth harmonics of Nd: YAG lasers (355nm, 266nm as well as 213nm, respectively), the second and third harmonics of Ti: Sapphire amplifiers (400nm and also 266.7 nm) as well as other relevant areas.
(2) DKDP crystal
Summary: DKDP (KD*P) crystal, also known as potassium deuterium phosphate crystal, chemical formula KD2PO4, is a particular electro-optical crystal item.
Features: KDP and DKDP (KD * P) crystals have the advantages of high resistance to light damage threshold, high electro-optic coefficient, great environmental resistance, small layout, and ease as well as adjustment.
Application: It is extensively used in high-tech areas such as laser regularity conversion, electro-optic inflection, and electro-optic rapid switching. It can manufacture inexpensive and large-scale completed nonlinear elements suitable for dual frequency (SHG) and triple frequency (THG) areas.
(3) KTP crystal
Summary: KTP crystal, also known as potassium titanium phosphate crystal, whose chemical formula is KTiOPO4, is a crystal product with superb nonlinear and electro-optical properties.
Characteristics: KTP has homes of high electro-optical coefficient and low dielectric consistency, which can operate at high frequency and be utilized as an electro-optical Q-switched crystal. KTP also has outstanding frequency doubling performance:
- Huge nonlinear coefficient
- No declination Angle
- High optical damage limit
- Little change in phase matching problems with temperature
Application: used in tool and tiny power Nd: YAG and Nd: YVO4 laser output 1064-532nm laser regularity increasing crystal materials.
(4) LN (LiNbO3) crystals
Description: LiNbO3 crystal, likewise referred to as lithium niobate crystal, referred to as LN crystal, is an electro-optical crystal with superb, thorough performance.
Features: Compared to other electro-optical crystals, the crystal has the advantages of tiny dimension, challenging decidualization, large electro-optical coefficient, wide transparency range, high electro-optical performance, low absorption loss, and reduced damage threshold.
Application: It has a wide range of applications in relevant areas, such as electro-optic modulators and Q-switches in Nd: YAG, Nd: YLF, and Ti: Sapphire lasers, as well as modulators in optical fibers.