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Journal Article
Analysis of Dimensional Tolerance for an Optical Demultiplexer of a Highly Alignment Tolerant 4 × 25 Gb/s ROSA Module
- Authors
- Joon Ki Lee, Joon Young Huh, Sae-Kyoung Kang, Youn-Seon Jang
- Issue Date
- 2014-02
- Citation
- Optics Express, v.22, no.4, pp.4307-4315
- ISSN
- 1094-4087
- Publisher
- Optical Society of America(OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- 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 Keywords
- 100G Ethernet, Optical Transceiver, Three dimensional(3D), Three-dimensional simulation, alignment tolerance, angular error, dimensional tolerance, optical subassembly, thin film(TF), thin film filter
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
