Simple Optoelectronic Oscillators Using Direct Modulation of Dual-Section Distributed-Feedback Lasers

被引：9

作者：

Cho, Jun-Hyung ^{[1
]}

Sung, Hyuk-Kee ^{[1
]}

机构：

[1] Hongik Univ, Sch Elect & Elect Engn, Seoul 121791, South Korea

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2012年 / 24卷 / 23期

基金：

新加坡国家研究基金会;

关键词：

Direct laser modulation; dual-section laser; optoelectronic oscillator (OEO); STRONG OPTICAL-INJECTION; SEMICONDUCTOR-LASERS; DFB LASERS;

D O I：

10.1109/LPT.2012.2224653

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：

Dual-section distributed-feedback laser diodes, in which the electrode on the top of the gain medium is split into two electrically isolated sections, can emit multiple optical modes by self-sustained pulsation at gigahertz frequencies. Here, we report that by directly modulating the laser in an optoelectronic oscillator (OEO) loop, a pure OEO signal can be obtained without the need for external modulators. In experiments, we successfully generate an 8-GHz OEO signal with a phase noise of -108 dBc/Hz at a 5-kHz offset and a radio-frequency threshold gain of 29 dB.

引用

页码：2172 / 2174

页数：3