High-speed VCSEL of modulation bandwidth over 7.0 GHz and its application to 100 m PCF datalink

被引：25

作者：

Dutta, AK ^{[1
]}

Kosaka, H ^{[1
]}

Kurihara, K ^{[1
]}

Sugimoto, Y ^{[1
]}

Kasahara, K ^{[1
]}

机构：

[1] NEC Corp Ltd, Optoelect Res Labs, Ibaraki, Osaka 305, Japan

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 1998年 / 16卷 / 05期

关键词：

datalink; large core plastic clad fiber; modulation bandwidth; pad; vertical cavity surface emitting lasers;

D O I：

10.1109/50.669024

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：

High-speed vertical cavity surface emitting laser (VCSEL) with 6 x 6 mu m active area is fabricated by reducing its pad area in order to reduce its parasitic capacitance. The fabricated VCSEL shows the 3 dB bandwidth of over 7 GHz and average threshold current of 0.7 mA. This is the highest 3 dB modulation bandwidth ever reported for the plan type bottom emitted laser with pad. The maximum intrinsic bandwidth as estimated from k-factor is found to be over 20 GHz, which is less than three times than the observed bandwidth, The thermal characteristics are also found to be almost unchanged due to the reducing of its pad size. It also showed open eye pattern for 3 GHz nonreturn to zero (NRZ) pseudorandom signal after transmission through 100 m large core plastic clad fiber (PCF), which could be used in short and medium distance optical links.

引用

页码：870 / 875

页数：6

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