Nonlinear optical crystal: LBO crystal

The nonlinear optical crystal is the crystal which reveals the nonlinear optical effect more than twice for the laser electric field. Nonlinear optical crystal is a functional product in which the frequency-doubling (or "regularity conversion") crystal can be used to transform the laser wavelength in order to increase the laser's tunable range, which has critical application value in the field of laser modern technology.

Nonlinear crystal properties

For nonlinear optical crystals, in addition to having big effective nonlinear coefficients, the adhering to homes are also called for:

1. As a whole, the crystal should have high openness for the wavelength included;

2. the internal absorption needs to be low, the anti-damage threshold needs to be high;

3. Steady physical as well as chemical residential or commercial properties, modest firmness, no deliquescence;

4. Steady, crystal top quality, plus size, affordable price, easy coating.

LBO

Lithium trisborate, additionally referred to as LBO, is an outstanding high-power UV frequency-doubling crystal with wide passage band, high damages threshold as well as large acceptance Angle.

LBO nonlinear crystal

It is one of the nonlinear crystals with outstanding residential or commercial properties. The most significant advantage of LBO is that it can use temperature level tuning to achieve non-critical phase matching (NCPM). When the regularity increasing process pleases the non-critical phase matching relation, the departure angle between the essential regularity and the 2nd harmonic of the regularity doubling is 0. Currently, the reliable length of the LBO crystal can in theory get to infinity, which can compensate for its little nonlinear coefficient. As a result of its big damage limit, this suggests that high-power essential wave pumping can be attained.

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