Highly sensitive and compact cross-correlator for measurement of picosecond pulse transmission characteristics at 1550nm using two-photon absorption in Si avalanche photodiode

被引:13
作者
Kikuchi, K [1 ]
Futami, F [1 ]
Katoh, K [1 ]
机构
[1] Univ Tokyo, Adv Sci & Technol Res Ctr, Meguro Ku, Tokyo 1538904, Japan
关键词
D O I
10.1049/el:19981522
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
A highly sensitive and compact cross-correlator in which an Si avalanche photodiode (APD) is used as a two-photon absorber is described, which was developed for the measurement of picosecond pulse transmission characteristics at 1550nm. A 10GHz. 1.7ps pulse under test is generated from an external-cavity modelocked semiconductor laser. and is transmitted through an 80 km long dispersion-shifted fibre. A 200fs sampling pulse is obtained from the pulse under test by pulse compression. An Si APD is used as a two-photon absorber for the cross-correlation measurement of the transmitted pulse waveform. The asymmetric pulse-waveform distortion stemming from the dispersion slope is clearly detected by the system.
引用
收藏
页码:2161 / 2162
页数:2
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