Batch Fabrication of Silicon Nanometer Tip Using Isotropic Inductively Co...
Effect of Low-Concentration Rb(+)Mixing on Semiconductor Majority Charge ...
Stable CsPb1-xZnxI3 Colloidal Quantum Dots with Ultralow Density of Trap ...
Barrier tunneling and loop polarization in Hopf semimetals
A Flexible Concentric Circle Structured Zinc-Ion Micro-Battery with Elect...
A Silicon Spatial Light Modulator Unit With High Extinction Ratios in C Band
Theoretical analysis on the energy band properties of N- and M-structure ...
Wearable electrochemical biosensor based on molecularly imprinted Ag nano...
Investigation of excitonic recombination in single-crystal diamond with c...
Schottky-barrier modulation at germanium/monolayer MoS(2)heterojunction i...
官方微信
友情链接

Experimental Demonstration of Directly Modulated DFB Lasers With Negative Chirp Over Wide Temperature Operation

2020-09-07

Author(s): Liu, GH (Liu, Gonghai); Zhao, GY (Zhao, Gongyuan); Zhang, G (Zhang, Gong); Liu, YY (Liu, Yuanyuan); Lu, QY (Lu, Qiaoyin); Guo, WH (Guo, Weihua)

Source: JOURNAL OF LIGHTWAVE TECHNOLOGY Volume: 38 Issue: 14 Pages: 3663-3669 DOI: 10.1109/JLT.2020.2979337 Published: JUL 15 2020

Abstract: Two-section distributed feedback lasers containing an active section and a modulated reflection section have been demonstrated for direct modulation with negative chirp. The reflection section has the same waveguide core and grating pitch as the active section. The active section of the laser has fixed current injection and the modulation voltage is loaded onto the reflection section when the laser normally works. This modulation method can obtain negative chirp because the carrier density variation in the active section during modulation is contrary to traditional current modulation. The threshold current and side-mode suppression ratio of the fabricated laser are about 10-mA and 60-dB at 20 degrees C, respectively. A 20-GHz modulation bandwidth at 0.9-V reverse bias of the modulated reflection section has been achieved. The negative chirp generated by the modulation is about 45 GHz. 10 Gb/s transmission over 10-km single-mode fiber with error-free-operation over a wide temperature range has been demonstrated as well. The sensitivity of the 10-km transmission was better than BTB configuration at all temperatures due to the negative chirp characteristic.

Accession Number: WOS:000560002700012

ISSN: 0733-8724

eISSN: 1558-2213

Full Text: https://ieeexplore.ieee.org/document/9028149



关于我们
下载视频观看
联系方式
通信地址

北京市海淀区清华东路甲35号 北京912信箱 (100083)

电话

010-82304210/010-82305052(传真)

E-mail

semi@semi.ac.cn

交通地图
版权所有 中国科学院半导体研究所

备案号:京ICP备05085259号 京公网安备110402500052 中国科学院半导体所声明