High-Speed EA-DFB Laser for 40-G and 100-Gbps

• DOI: 10.1587/transele.e92.c.937
• Publication Date: 2009-07-08T05:58:21Z
• Authors: Shigeki MAKINO; Kazunori SHINODA; Takeshi KITATANI; Hiroaki HAYASHI; Takashi SHIOTA; Shigehisa TANAKA; Masahiro AOKI; Noriko SASADA; Kazuhiko NAOE
• Keywords: Extinction ratio; Modulation (music); Transceiver

We have developed a high-speed electroabsorption modulator integrated distributed feedback (EA/DFB) lasers. Transmission performance over 10km was investigated under 25Gbps and 43Gbps modulation. In addition, the feasibility of wide temperature range operation also investigated. An uncooled EA/DFB laser can contribute to realization low-power-consumption, small-footprint cost-effective transceiver module. this study, we used temperature-tolerant InGaAlAs materials in an EA modulator. A ranged 12km transmission with 9.6dB dynamic extinction ratio demonstrated demonstrated. The achieved clear, opened eye diagram 7dB from 25°C 85°C. modulated output power more than +2.9dBm even at These devices are suitable for next-generation, network systems, such as 40Gbps 100Gbps Ethernet.