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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 4 — Feb. 24, 2014
  • pp: 4307–4315

Analysis of dimensional tolerance for an optical demultiplexer of a highly alignment tolerant 4 × 25 Gb/s ROSA module

Joon Ki Lee, Joon Young Huh, Sae-Kyoung Kang, and Youn-Seon Jang  »View Author Affiliations


Optics Express, Vol. 22, Issue 4, pp. 4307-4315 (2014)
http://dx.doi.org/10.1364/OE.22.004307


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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°.

© 2014 Optical Society of America

OCIS Codes
(250.0250) Optoelectronics : Optoelectronics
(250.3140) Optoelectronics : Integrated optoelectronic circuits

ToC Category:
Optoelectronics

History
Original Manuscript: December 10, 2013
Revised Manuscript: February 7, 2014
Manuscript Accepted: February 8, 2014
Published: February 18, 2014

Citation
Joon Ki Lee, Joon Young Huh, Sae-Kyoung Kang, and Youn-Seon Jang, "Analysis of dimensional tolerance for an optical demultiplexer of a highly alignment tolerant 4 × 25 Gb/s ROSA module," Opt. Express 22, 4307-4315 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-4-4307


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References

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