激光器
光学
光电子学
调制(音乐)
波分复用
传输(电信)
光通信
多路复用
波长
材料科学
物理
电信
计算机科学
声学
作者
A. V. Babichev,S. A. Blokhin,E. S. Kolodeznyi,L. Ya. Karachinsky,I. I. Novikov,A. Yu. Egorov,Sicong Tian,D. Bimberg
出处
期刊:Photonics
[MDPI AG]
日期:2023-03-03
卷期号:10 (3): 268-268
被引量:5
标识
DOI:10.3390/photonics10030268
摘要
Single-mode long-wavelength (LW) vertical-cavity surface-emitting lasers (VCSELs) present an inexpensive alternative to DFB-lasers for data communication in next-generation giga data centers, where optical links with large transmission distances are required. Narrow wavelength-division multiplexing systems demand large bit rates and single longitudinal and transverse modes. Spatial division multiplexing transmission through multicore fibers using LW VCSELs is enabling still larger-scale data center networks. This review discusses the requirements for achieving high-speed modulation, as well as the state-of-the-art. The hybrid short-cavity concept allows for the realization of f3dB frequencies of 17 GHz and 22 GHz for 1300 nm and 1550 nm range VCSELs, respectively. Wafer-fusion (WF) concepts allow the realization of long-time reliable LW VCSELs with a record single-mode output power of more than 6 mW, 13 GHz 3 dB cut-off frequency, and data rates of 37 Gbit/s for non-return-to-zero (NRZ) modulation at 1550 nm.
科研通智能强力驱动
Strongly Powered by AbleSci AI