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학술지 Analysis of Dimensional Tolerance for an Optical Demultiplexer of a Highly Alignment Tolerant 4 × 25 Gb/s ROSA Module
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저자
이준기, 허준영, 강세경, Youn-Seon Jang
발행일
201402
출처
Optics Express, v.22 no.4, pp.4307-4315
ISSN
1094-4087
출판사
Optical Society of America(OSA)
DOI
https://dx.doi.org/10.1364/OE.22.004307
협약과제
13VI1500, 차세대 광전달망 구축을 위한 테라급 광-회선-패킷 통합 스위칭 시스템 기술개발, 이종현
초록
We have developed a 4 × 25 Gb/s ROSA (receiver optical subassembly) module for 100G Ethernet optical transceiver. This ROSA module has very large alignment tolerance of more than 짹 250 μm between the optical DMUX (demultiplexer) and four photodiodes, for the reason it has the advantage of being easily assembled. The large alignment tolerance can be attributed to the dimensional tolerant optical DMUX, which is composed of four thin film filters attached to a parallelogram-shaped optic block. Since it is important to define the fabrication specifications for the dimension of the optic block, we analyze dimensional tolerance for the optic block using three-dimensional simulation. This parallelogram-shaped optical DMUX permits length tolerance of 짹 300 μm and angular tolerance of 짹 0.1째. The fabricated optical DMUX is estimated to have the angular error of less than 0.09째. © 2014 Optical Society of America.
KSP 제안 키워드
100G Ethernet, Optical Transceiver, Three dimensional(3D), Three-dimensional simulation, alignment tolerance, angular error, dimensional tolerance, optical subassembly, thin film(TF), thin film filter