Stimulated emission and light amplification in Ho3+ doped oxyfluoride glasses and glass-ceramics

被引：0

作者：

Lahoz, Fernando ^{[1
]}

Capuj, Nestor E. ^{[2
]}

Navarro-Urrios, Daniel ^{[2
,3
]}

Hernandez, Sergio E. ^{[1
]}

机构：

[1] Univ La Laguna, Dept Fis Fundamental & Expt Elect & Sistemas, E-38206 Tenerife, Spain

[2] Univ La Laguna, Dept Fis Basica, E-38206 Tenerife, Spain

[3] Univ Trent, Dept Fis, Lab Nanosci, I-38050 Trento, Italy

来源：

PHOTONIC MATERIALS, DEVICES, AND APPLICATIONS II | 2007年 / 6593卷

关键词：

optical amplification; gain; holmium; glass-ceramics;

D O I：

10.1117/12.721884

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Stimulated emission and light amplification have been observed in Ho3+-doped transparent oxyfluoride glasses and glass-ceramics. A Pump and probe experiment has been designed to show this result. A doubled-frequency Nd-YAG pulsed laser oscillating at 532nm was used as the pump source to strongly populate the Ho3+ S-5(2):F-5(4) level. Low power laser radiation at 750nm was used as the probe beam to stimulate the Ho3+ S-5(2):F-5(4) -> I-5(7) electronic transition at the same wavelength. The high power pump pulses provide population inversion between the Ho3+ S-5(2):F-5(4) and I-5(7) electronic levels and a net positive gain in the 750nm signal is observed both in the precursor glass and in the glass-ceramic. The highest optical 2ain was obtained for the glass-ceramic sample and corresponds to about 3.7cm(-1) (similar to 16dB/cm). The dynamics of the gain is also investigated.

引用

页数：8

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