-
Preparation of Nd:YLF Raw Materials by Melting Method and Study on Their Crystal Growth and Properties – 01
Research Background Lithium Yttrium Fluoride (LiYF4, YLF) crystal has many excellent properties such as low melting point, low phonon energy, small thermal lens effect, natural polarization, etc. It is a laser matrix material with excellent performance. YLF belongs to the tetragonal structure of ...Read more -
Study on thermal characteristics of 266 nm deep ultraviolet laser generated by BBO crystal – 06
04 Theoretical study of thermal properties As can be seen from Figure 5 (a), when the BBO crystal (www.wisoptic.com) matching temperature is 60 ℃, as the 266 nm deep ultraviolet laser power gradually increases from 0.32 W to 1.24 W, 2.09 W and 2.25 W, the fitted nonlinear absorption coefficient...Read more -
Study on thermal characteristics of 266 nm deep ultraviolet laser generated by BBO crystal – 05
04 Theoretical study of thermal properties The above experiment shows that the BBO crystal (www.wisoptic.com) generates serious heat in the process of frequency quadrupling. It is known that the energy band gap of the BBO crystal is 6.56 eV, while the single photon energy of 266 nm and 532 nm la...Read more -
Study on thermal characteristics of 266 nm deep ultraviolet laser generated by BBO crystal – 04
03 Experimental results and analysis When the green light input power is lower than 4 W, the matching temperature of the BBO crystal has little effect on the output power of the quadrupled 266 nm laser, and when the optimal power of ultraviolet light output is achieved, the temperature offset ΔT ...Read more -
Study on thermal characteristics of 266 nm deep ultraviolet laser generated by BBO crystal – 03
03 Experimental results and analysis By optimizing the cavity length parameters of Nd:YVO4 (www.wisoptic.com) laser under high-power pump injection, a 1064 nm high peak power narrow pulse laser output with an average power of 26 W, a repetition frequency of 20 kHz, and a single pulse width of 5 n...Read more -
Study on thermal characteristics of 266 nm deep ultraviolet laser generated by BBO crystal – 02
Experimental Setup In order to obtain a 266 nm deep ultraviolet laser with high efficiency and stable operation, this paper built an all-solid-state 266 nm deep ultraviolet laser generation device as shown in Figure 1, which consists of a cavity-dumped all-solid-state Nd:YVO4 laser, a double-freq...Read more -
Study on thermal characteristics of 266 nm deep ultraviolet laser generated by BBO crystal – 01
Introduction High-power all-solid-state deep ultraviolet (DUV) lasers have many important applications in scientific research, medical diagnosis, and industrial manufacturing, such as Raman spectroscopy, photobioimaging, integrated circuit etching, and precision micromachining, due to thei...Read more -
Study on the efficiency and temperature robustness of chirped PPLN crystal in 1064nm frequency doubling experiment – 07
4. Experimental Result and Analysis 4.2 Temperature robustness comparison between CPPLN and LBO As a relatively new nonlinear optical material, CPPLN has a high nonlinear coefficient and a large gain bandwidth. In the foreseeable future, it will have more applications in the fields of industry an...Read more -
Study on the efficiency and temperature robustness of chirped PPLN crystal in 1064nm frequency doubling experiment – 06
4. Experimental Result and Analysis 4.2 Temperature robustness comparison between CPPLN and LBO When the input 1064nm light is 22.53W, the curves of the frequency-doubled optical power generated by CPPLN (www.wisoptic.com) and LBO (www.wisoptic.com) with temperature are shown in Figure 5(a) and F...Read more -
Study on the efficiency and temperature robustness of chirped PPLN crystal in 1064nm frequency doubling experiment – 05
4. Experimental Result and Analysis 4.1 Comparison of frequency doubling efficiency of CPPLN and LBO The CPPLN crystal (www.wisoptic.com) we designed has the maximum frequency doubling efficiency in the working range between 15-40℃, so the subsequent analysis will be carried out around this range...Read more -
Study on the efficiency and temperature robustness of chirped PPLN crystal in 1064nm frequency doubling experiment – 04
3. Experimental Equipment The overall device diagram of the frequency doubling experiment is shown in Figure 3(a). The 1064nm continuous light passes through a half-wave plate and is directly focused into the CPPLN crystal by a lens. The generated frequency doubling light passes through a 532nm t...Read more -
Study on the efficiency and temperature robustness of chirped PPLN crystal in 1064nm frequency doubling experiment – 03
2. Theoretical analysis 2.2 Design of CPPLN crystal structure In order to achieve better temperature robustness and higher frequency doubling efficiency on the same CPPLN crystal, we designed the crystal structure of CPPLN. The schematic diagram of CPPLN for frequency doubling from 1064nm to 532n...Read more
