ANALYSIS OF GAIN DYNAMICS IN PR3+-DOPED FLUORIDE FIBER AMPLIFIERS

被引：13

作者：

KARASEK, M

机构：

[1] Institut für Hochfreauenztecimik, Technische Universität Braunschweig

[2] Institute of Radio Engineering and Electronics, Academy of Sciences of the Czech Republic, 18251 Prague

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1995年 / 7卷 / 03期

关键词：

D O I：

10.1109/68.372752

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：

A large-signal model for a four-level laser system which includes time variation effects has been used to study low frequency response characteristics, two-channel crosstalk and transient effects in praseodymium doped fluoride fiber amplifiers (PDFFA). Pump power modulation results in a low-pass transfer of modulation to signals amplified in the PDFFA. Low-frequency compression of the PDFFA input/output signal transfer characteristic has been observed, Due to a relatively long lifetime of the (1)G(4) metastable level, multichannel crosstalk lower than 30 dB has been calculated for modulation frequencies higher than 600 kHz. Response of the PDFFA toward a low frequency signal square pulse exhibits a characteristic overshoot that originates from the PDFFA saturation by the amplified signal,

引用

页码：299 / 302

页数：4

共 10 条

[1] SPECTROSCOPY OF PRASEODYMIUM(III) IN ZIRCONIUM FLUORIDE GLASS [J].