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Optical Engineering

Miniaturized bidirectional optical subassembly using silicon optical bench with 45-deg micro-reflectors in short-reach 40-Gbit/s optical interconnects
Author(s): Chin-Ta Chen; Hsu-Liang Hsiao; Po-Kuan Shen; Guan-Fu Lu; Hsiao-Chin Lan; Yun-Chih Lee; Chia-Chi Chang; Jen-Yu Li; Ajay Nedle; Shou-Fu Chang; Yo-Shen Lin; Mount-Learn Wu
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Paper Abstract

The development of a 4-channel×10-Gbits/s optical interconnect module based on a silicon optical bench (SiOB) is presented. The 4-channel vertical-cavity surface-emitting laser (VCSEL) and photo diode (PD) arrays are flip-chip assembled onto the pedestals of SiOB using Au/Sn solder bumps to form an SiOB-based bi-directional optical sub-assembly (BOSA) configuration. The optical coupling of VCSEL-to-multi-mode fiber (MMF) and MMF-to-PD without adding coupled optics is -5.2 and -2 dB, respectively. The wide alignment tolerances of 1-dB power variation for the transmitting and receiver parts to be ±15 μm are achieved. The clearly open 10-Gbits/s eye patterns of transmitting part as well as the 10-12-order bit error rate (BER) at the receiving part verify the proposed SiOB-based module is suitable for the application of 4-channel×10-Gbits/s optical interconnects.

Paper Details

Date Published: 1 November 2012
PDF: 8 pages
Opt. Eng. 51(11) 115005 doi: 10.1117/1.OE.51.11.115005
Published in: Optical Engineering Volume 51, Issue 11
Show Author Affiliations
Chin-Ta Chen, National Central Univ. (Taiwan)
Hsu-Liang Hsiao, National Central Univ. (Taiwan)
Po-Kuan Shen, National Central Univ. (Taiwan)
Guan-Fu Lu, National Central Univ. (Taiwan)
Hsiao-Chin Lan, National Central Univ. (Taiwan)
Yun-Chih Lee, Centera Photonics Inc. (Taiwan)
Chia-Chi Chang, National Central Univ. (Taiwan)
Jen-Yu Li, National Central Univ. (Taiwan)
Ajay Nedle, National Central Univ. (Taiwan)
Shou-Fu Chang, National Central Univ. (Taiwan)
Yo-Shen Lin, National Central Univ. (Taiwan)
Mount-Learn Wu, National Central Univ. (Taiwan)

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