Self-adjusting Q laser crystal material and purpose thereof

A laser crystal and self-adjusting technology, applied to lasers, laser parts, phonon exciters, etc., can solve the problems of high price, difficult design, and bulky volume, and achieve the effect of simple production and compact structure

Inactive Publication Date: 2012-04-04
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the whole system is bulky, difficult to design, and expensive

Method used

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  • Self-adjusting Q laser crystal material and purpose thereof
  • Self-adjusting Q laser crystal material and purpose thereof
  • Self-adjusting Q laser crystal material and purpose thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: making Na 3 La 8.7 Nd 0.3 B 8 o 27 Self-Q-switched pulsed laser

[0018] Massive Na 3 La 8.7 Nd 0.3 B 8 o 27 :Na 2 CO 3 :H 3 BO 3 : NaF = 1: 7.5: 6.5: 9 ingredients, using high temperature flux method to grow Na 3 La 8.7 Nd 0.3 B 8 o 27 crystals, in which Na 2 CO 3 、H 3 BO 3 and NaF as compound flux, Na 3 La 8.7 Nd 0.3 B 8 o 27 It is sintered according to the stoichiometric ratio of ingredients.

[0019] like figure 2 As shown, the Na grown in this example 3 La 8.7 Nd 0.3 B 8 o 27 The crystal is cut along the physical optical axis X, Y and Z directions of the crystal to make a device (marker "4" in the figure), the length in the Z direction is l=20mm, the width w=10mm, the thickness in the X direction is d=4mm, and the Z direction is The direction of light is passed, and the X direction is coated with a gold conductive film; and an electric field V is applied in the physical X direction or the physical Y direction; the cry...

Embodiment 2

[0020] Embodiment 2: making Na 3 La 8 YB 8 o 27 Self-Q-switched pulsed laser

[0021] The pumping method is the same as in Example 1, the difference is that the material used is Na 3 La 8 YB 8 o 27 crystals, growing Na 3 La 8 YB 8 o 27 The raw materials used in the crystal are sintered according to their stoichiometric ratio. The length in the Z direction is l=25mm, the width is w=15mm, the thickness in the X direction is d=5mm, the Z direction is transparent, the X direction is coated with silver conductive film, and the emission wavelength is 980nm. A laser diode side-pumps the crystal to achieve a laser output of 1.03 μm.

Embodiment 3

[0022] Embodiment 3: making Na 3 La 6 Er 0.3 Yb 2.7 B 8 o 27 Self-Q-switched pulsed laser

[0023] The pumping method is the same as in embodiment 1 or embodiment 2, the difference is that the material used is Na 3 La 6 Er 0.3 Yb 2.7 B 8 o 27 crystals, growing Na 3 La 6 Er 0.3 Yb 2.7 B 8 o 27The raw materials used in the crystal are sintered according to their stoichiometric ratio. The length in the Z direction is l=25mm, the width is w=15mm, the thickness in the Y direction is d=7mm, the Z direction is transparent, the Y direction is coated with a gold conductive film, and the emission wavelength is 980nm. A laser diode side-pumps the crystal to achieve a laser output of 1.55 μm.

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Abstract

The invention relates to a self-adjusting Q laser crystal and a purpose of the self-adjusting Q laser crystal. A chemical formula of the self-adjusting Q laser crystal is Na3La9-xRExB8O27, wherein x is more than 0 and is less than 9, RE is one or two of Pr3+, Nd3+, Sm3+, Dy3+, Ho3+, Er3+, Tm3+ and Yb3+ rare earth ions; the self-adjusting Q laser crystal belongs to a D3h-62m point group; a linear electro-optical coefficient matrix only includes an electro-optical coefficient gamma 22; and the electro-optical coefficient gamma 22 is equal to 2.3 pm/V. The self-adjusting Q laser crystal has the advantages of no deliquescence, high laser induced damage threshold and the like and can be used for manufacturing a self-adjusting Q laser device with a simple and compact structure.

Description

technical field [0001] The invention relates to a self-Q-switching laser crystal material and its application in the field of Q-switching pulsed lasers. Background technique [0002] High power, short pulse and multi-wavelength are one of the important directions of laser development in today's era. Laser pulses with high power and high repetition rate in the range of nanoseconds and sub-nanoseconds are widely used in scientific research, military, industrial, medical and other fields. Its application value has been applied in laser ranging, remote sensing, micromachining, nonlinear optics, microsurgery, pollution monitoring, high-speed holography and other fields. The Q-switching method is an effective way to obtain high peak power. Its basic principle is to periodically modulate the threshold value in the laser resonator, compress all the energy of the laser into a very narrow pulse and emit it, so as to obtain a pulse width of nano Second-level laser giant pulse. Here, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/115
Inventor 张建秀李如康夏明军张国春吴以成傅佩珍
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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