Gain enhancement in L-band EDFA through a double-pass technique

被引：77

作者：

Harun, SW ^{[1
]}

Poopalan, P ^{[1
]}

Ahmad, H ^{[1
]}

机构：

[1] Univ Malaya, Dept Phys, Kuala Lumpur 50603, Malaysia

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2002年 / 14卷 / 03期

关键词：

circulator; double-pass technique; erbium-doped fiber; L-Band; optical amplifier;

D O I：

10.1109/68.986791

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：

An improvement of gain in the long-wavelength band (L-band) is observed by double passing the forward amplified spontaneous emission and signal in the erbium-doped fiber (EDF) using a circulator, unlike the conventional single pass amplification. A gain enhancement as high as 11 dB is obtained for a 1570-nm signal with an input power of -20 dBm at 98 mW of pump power. However, a noise figure penalty of about 2 dB is observed.

引用

页码：296 / 297

页数：2

共 3 条

[1] Enhancement of power conversion efficiency for an L-band EDFA with a secondary pumping effect in the unpumped EDF section [J].