LOW-LOSS FIBER-CHIP-COUPLING WITH LARGE ALIGNMENT TOLERANCES BY TAPERED INGAASP/INP WAVE-GUIDE STRUCTURE

被引：0
|
作者：
MULLER, G
SAUER, B
WENGER, G
SEEBERGER, D
机构：
来源：
AEU-ARCHIV FUR ELEKTRONIK UND UBERTRAGUNGSTECHNIK-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 1993年 / 47卷 / 03期
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D O I：
暂无
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：
An optical spot size transformer for efficient butt-coupling of single mode fibres to optoelectronic InGaAsP/InP chips is investigated. The losses associated with the transformation of the fibre mode into a small elliptical mode are calculated with the help of a simple theoretical model. The measured transmission loss of 2.0 dB is in good agreement with the theoretical result. The alignment tolerances (corresponding to 90% of maximum transmission) for the butt-coupled fibre amount to +/- 2.0 mum for the lateral offset, +/- 1.5 mum for the vertical offset and 25 mum for the separation of fibre and chip.
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页码：186 / 189
页数：4
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