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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 26 — Dec. 21, 2009
  • pp: 24250–24260

Compact and passive-alignment 4-channel × 2.5-Gbps optical interconnect modules based on silicon optical benches with 45° micro-reflectors

Hsu-Liang Hsiao, Hsiao-Chin Lan, Chia-Chi Chang, Chia-Yu Lee, Siou-Ping Chen, Chih-Hung Hsu, Shuo-Fu Chang, Yo-Shen Lin, Feng-Ming Kuo, Jin-Wei Shi, and Mount-Learn Wu  »View Author Affiliations


Optics Express, Vol. 17, Issue 26, pp. 24250-24260 (2009)
http://dx.doi.org/10.1364/OE.17.024250


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Abstract

Compact and passive-alignment 4-channel × 2.5-Gbps optical interconnect modules are developed based on the silicon optical benches (SiOBs) of 5 × 5 mm2. A silicon-based 45° micro-reflector and V-groove arrays are fabricated on the SiOB using anisotropic wet etching. Moreover, high-frequency transmission lines of 4 channel × 2.5 Gbps, and bonding pads with Au/Sn eutectic solder are also deposited on the SiOB. The vertical-cavity surface-emitting laser (VCSEL) array and photo-detector (PD) array are flip-chip assembled on the intended positions. The multi-mode fiber (MMF) ribbons are passively aligned and mounted onto the V-groove arrays. Without the assistance of additional optics, the coupling efficiencies of VCSEL-to-MMF in the transmitting part and MMF-to-PD in the receiving part can be as high as −5.65 and −1.98 dB, respectively, under an optical path of 180 μm. The 1-dB coupling tolerance of greater than ± 20 μm is achieved for both transmitting and receiving parts. Eye patterns of both parts are demonstrated using 15-bit PRBS at 2.5 Gbps.

© 2009 OSA

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(200.4650) Optics in computing : Optical interconnects
(230.4040) Optical devices : Mirrors
(130.3990) Integrated optics : Micro-optical devices

ToC Category:
Integrated Optics

History
Original Manuscript: October 7, 2009
Revised Manuscript: December 14, 2009
Manuscript Accepted: December 14, 2009
Published: December 18, 2009

Citation
Hsu-Liang Hsiao, Hsiao-Chin Lan, Chia-Chi Chang, Chia-Yu Lee, Siou-Ping Chen, Chih-Hung Hsu, Shuo-Fu Chang, Yo-Shen Lin, Feng-Ming Kuo, Jin-Wei Shi, and Mount-Learn Wu, "Compact and passive-alignment 4-channel × 2.5-Gbps optical interconnect modules based on silicon optical benches with 45° micro-reflectors," Opt. Express 17, 24250-24260 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-26-24250


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