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Youn-seon Jang - One of the best experts on this subject based on the ideXlab platform.

  • analysis of Dimensional Tolerance for an optical demultiplexer of a highly alignment tolerant 4 25 gb s rosa module
    Optics Express, 2014
    Co-Authors: Joon Ki Lee, Joon Young Huh, Sae-kyoung Kang, Youn-seon Jang
    Abstract:

    We have developed a 4 × 25 Gb/s ROSA (receiver optical sub-assembly) module for 100G Ethernet optical transceiver. This ROSA module has very large alignment Tolerance of more than ± 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 ± 300 µm and angular Tolerance of ± 0.1°. The fabricated optical DMUX is estimated to have the angular error of less than 0.09°.

  • Analysis of Dimensional Tolerance for an optical demultiplexer of a highly alignment tolerant 4 × 25 Gb/s ROSA module.
    Optics Express, 2014
    Co-Authors: Joon Ki Lee, Joon Young Huh, Sae-kyoung Kang, Youn-seon Jang
    Abstract:

    We have developed a 4 × 25 Gb/s ROSA (receiver optical sub-assembly) module for 100G Ethernet optical transceiver. This ROSA module has very large alignment Tolerance of more than ± 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 ± 300 µm and angular Tolerance of ± 0.1°. The fabricated optical DMUX is estimated to have the angular error of less than 0.09°.

Joon Ki Lee - One of the best experts on this subject based on the ideXlab platform.

  • analysis of Dimensional Tolerance for an optical demultiplexer of a highly alignment tolerant 4 25 gb s rosa module
    Optics Express, 2014
    Co-Authors: Joon Ki Lee, Joon Young Huh, Sae-kyoung Kang, Youn-seon Jang
    Abstract:

    We have developed a 4 × 25 Gb/s ROSA (receiver optical sub-assembly) module for 100G Ethernet optical transceiver. This ROSA module has very large alignment Tolerance of more than ± 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 ± 300 µm and angular Tolerance of ± 0.1°. The fabricated optical DMUX is estimated to have the angular error of less than 0.09°.

  • Analysis of Dimensional Tolerance for an optical demultiplexer of a highly alignment tolerant 4 × 25 Gb/s ROSA module.
    Optics Express, 2014
    Co-Authors: Joon Ki Lee, Joon Young Huh, Sae-kyoung Kang, Youn-seon Jang
    Abstract:

    We have developed a 4 × 25 Gb/s ROSA (receiver optical sub-assembly) module for 100G Ethernet optical transceiver. This ROSA module has very large alignment Tolerance of more than ± 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 ± 300 µm and angular Tolerance of ± 0.1°. The fabricated optical DMUX is estimated to have the angular error of less than 0.09°.

Sae-kyoung Kang - One of the best experts on this subject based on the ideXlab platform.

  • analysis of Dimensional Tolerance for an optical demultiplexer of a highly alignment tolerant 4 25 gb s rosa module
    Optics Express, 2014
    Co-Authors: Joon Ki Lee, Joon Young Huh, Sae-kyoung Kang, Youn-seon Jang
    Abstract:

    We have developed a 4 × 25 Gb/s ROSA (receiver optical sub-assembly) module for 100G Ethernet optical transceiver. This ROSA module has very large alignment Tolerance of more than ± 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 ± 300 µm and angular Tolerance of ± 0.1°. The fabricated optical DMUX is estimated to have the angular error of less than 0.09°.

  • Analysis of Dimensional Tolerance for an optical demultiplexer of a highly alignment tolerant 4 × 25 Gb/s ROSA module.
    Optics Express, 2014
    Co-Authors: Joon Ki Lee, Joon Young Huh, Sae-kyoung Kang, Youn-seon Jang
    Abstract:

    We have developed a 4 × 25 Gb/s ROSA (receiver optical sub-assembly) module for 100G Ethernet optical transceiver. This ROSA module has very large alignment Tolerance of more than ± 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 ± 300 µm and angular Tolerance of ± 0.1°. The fabricated optical DMUX is estimated to have the angular error of less than 0.09°.

Joon Young Huh - One of the best experts on this subject based on the ideXlab platform.

  • analysis of Dimensional Tolerance for an optical demultiplexer of a highly alignment tolerant 4 25 gb s rosa module
    Optics Express, 2014
    Co-Authors: Joon Ki Lee, Joon Young Huh, Sae-kyoung Kang, Youn-seon Jang
    Abstract:

    We have developed a 4 × 25 Gb/s ROSA (receiver optical sub-assembly) module for 100G Ethernet optical transceiver. This ROSA module has very large alignment Tolerance of more than ± 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 ± 300 µm and angular Tolerance of ± 0.1°. The fabricated optical DMUX is estimated to have the angular error of less than 0.09°.

  • Analysis of Dimensional Tolerance for an optical demultiplexer of a highly alignment tolerant 4 × 25 Gb/s ROSA module.
    Optics Express, 2014
    Co-Authors: Joon Ki Lee, Joon Young Huh, Sae-kyoung Kang, Youn-seon Jang
    Abstract:

    We have developed a 4 × 25 Gb/s ROSA (receiver optical sub-assembly) module for 100G Ethernet optical transceiver. This ROSA module has very large alignment Tolerance of more than ± 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 ± 300 µm and angular Tolerance of ± 0.1°. The fabricated optical DMUX is estimated to have the angular error of less than 0.09°.

R. Maeda - One of the best experts on this subject based on the ideXlab platform.

  • Effects of thermal debinding on surface roughness in micro powder injection molding
    Materials Letters, 2007
    Co-Authors: Lei Liu, Ngiap Hiang Loh, B.y. Tay, Shu Beng Tor, Yoichi Murakoshi, R. Maeda
    Abstract:

    Abstract Micro metal injection molding (μMIM) is a promising process for the replication of metallic microstructures. In the micrometer regime, surface roughness is important in view of the Dimensional Tolerance and the applications of microstructured parts. In this paper, the effects of debinding on the surface roughness of 316 L stainless steel microstructured parts were investigated. Experimental results showed that using higher heating rates during debinding increased the weight loss of debound parts. The debound parts of higher weight loss gave better surface finish after sintering. Comparing the increase of sintering time and temperature, the surface finish improvement was more significant for increasing temperature.

  • surface roughness of microstructured component fabricated by μmim
    Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2005
    Co-Authors: Yoichi Murakoshi, R. Maeda
    Abstract:

    Abstract Micro metal injection moulding (μMIM) is being developed for possible mass production of metallic microstructured components. In the micrometer regime, consideration of surface roughness becomes more important as Dimensional Tolerance is towards the range of surface roughness and surface force becomes dominant at the surface-to-volume ratio encountered. In this paper, the effects of sintering temperature and time on surface roughness ( R a ) and surface grain size ( G ) of 316L stainless steel microstructured components fabricated by μMIM were investigated. In particular, the top surface of the microstructure and the substructure area, on which the microstructures were positioned, were characterised. After sintering, R a values at these areas were similar even though disparate magnitudes were measured in the mould insert and the moulded microstructured component. R a and G were found to increase with sintering temperature for the top surface of the microstructure. A smaller G tended to yield lower R a and the substructure had smaller grain size and lower R a value than the comparatively free-standing microstructures.