Time-domain filtering to reduce signal-spontaneous beat noise for a pulse-type multiwavelength light source

被引：6

作者：

Sanjoh, H ^{[1
]}

Tsuzuki, K ^{[1
]}

Yoshikuni, Y ^{[1
]}

机构：

[1] NTT Corp, NTT Photon Lab, Kanagawa 2430198, Japan

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2003年 / 15卷 / 05期

关键词：

amplifier noise; optical amplifiers; optical gating; optical pulses; signal-spontaneous beat noise; wavelength-division multiplexing (WDM);

D O I：

10.1109/LPT.2003.810245

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 novel time-domain noise filtering scheme improves the signal-to-noise ratio (SNR) after an optical amplifier in pulse-type multiwavelength light sources. A reduction of signal-spontaneous beat noise is possible by using a synchronous time gate, which is not possible by conventional frequency domain filtering. Investigation of the amplifier noise reveals that. this scheme significantly reduces minimum power required for a low SNR in amplifier output.

引用

页码：757 / 759

页数：3

共 6 条

[1]

Agrawal G. P, 1997, FIBER OPTIC COMMUNIC, V2nd

[2] Multiwavelength light source with precise frequency spacing using a mode-locked semiconductor laser and an arrayed waveguide grating filter [J].