Properties of Large Size N31 Nd:Phosphate Laser Glass Prepared by Continuous Melting

Jingping, 唐景平 Tang; Lili, 胡丽丽 Hu; Shubin, 陈树彬 Chen; Wei, 陈伟 Chen; Biao, 王标 Wang; Zean, 翁泽安 Weng; Yongchun, 徐永春 Xu; Youkuo, 陈尤阔 Chen; Zhaosong, 邹兆松 Zou; Junjiang, 胡俊江 Hu; Lei, 温磊 Wen; Shunguang, 李顺光 Li

doi:10.3788/cjl201542.0206003

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“…In this case, the optical path difference is found to be 11.88 mm, and the volume loss of the Nd-glass calculated by equation ( 2) was also 0.13% per centimeter, confirming that the measurement was indeed correct. The volume absorption is mainly related to the concentration of transition metallic impurities in the Nd-glass samples [19,20]. Hence, in fabrication processes, the concentration of transition metallic impurities should be tightly controlled in order to yield higher output energies and better beam quality.…”

Section: Volume Lossmentioning

confidence: 99%

Measurement of different types of optical loss using high-precision laser photometer

Cao

et al. 2017

Meas. Sci. Technol.

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The development of high-power laser systems requires optical components that function at peak performance. Here, a high-precision, double beam, 1064 nm laser photometer setup was developed to measure the following different forms of optical loss from Nd-glass samples: total loss, volume loss, and the residual reflection and surface loss. The double beam design and a lock-in technique were utilized to decrease the impact of light-source instabilities and signal noise, respectively. The stability of the signal was further improved by decreasing the amount of optical absorption along the light path and by increasing the detection responsivity. Paired samples were symmetrically placed to eliminate beam displacement, and a laser scattering imaging technique was used to determine the influence of surface defects on the optical performance. Using the above techniques, multiple measurements of the transmittance and reflection values of the sample were taken, which showed our transmittance measurement to be highly precise, exhibiting a relative standard deviation of less than 0.06%. Different types of optical loss were distinguished and obtained from the transmittance and reflection measurements of samples with different thicknesses. A comparison of the optical performance from test points with and without surface defects allowed us to determine the influence of surface defects on the optical performance.

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Section: Volume Lossmentioning

confidence: 99%

Measurement of different types of optical loss using high-precision laser photometer

Cao

et al. 2017

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

Properties of Large Size N31 Nd:Phosphate Laser Glass Prepared by Continuous Melting

Cited by 1 publication

References 0 publications

Measurement of different types of optical loss using high-precision laser photometer

Measurement of different types of optical loss using high-precision laser photometer

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