A 25.78-Gbit/s × 4-ch Active Optical Cable with Ultra-Compact Form Factor for High-Density Optical Interconnects
Source abstract
Abstract
A 25.78-Gbit/s × 4-ch active optical cable (AOC) with an ultra-compact form factor is proposed. The size of the proposed AOC is 5.2 cm3, which is 55% smaller than the standard form factor of Quad Small Form-factor Pluggable (QSFP28), and 45% smaller than that of Micro Quad Small Form-factor Pluggable (μQSFP). As a result of utilizing a high-efficiency heat-dissipation structure and optimizing signal transmission lines and ground vias, the proposed AOC achieves high-heat dissipation and low-crosstalk characteristics. Furthermore, the proposed AOC demonstrated 25.78-Gbit/s error-free optical transmission over a 100-m Optical Multimode 3 (OM3) multimode fiber under all-channels (4-ch) operation and case temperature (Tc) of 70 °C.
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Research context
OpenAlex topics: Semiconductor Lasers and Optical Devices · Optical Network Technologies · Photonic and Optical Devices
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Affiliations
Hitachi, Ltd. Research & Development Group; Tokyo 185-8601, Japan
References (9)
Show source-provided references
1. Norimatsu, T., Kawamoto, T., Kogo, K., Kohmu, N., Yuki, F., Nakajima, N., Muto, T., Nasu, J., Komori, T., and Koba, H. (February, January 31). A 25 Gb/s multistandard serial link transceiver for 50 dB-loss copper cable in 28 nm CMOS. Proceedings of the IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA.
2. Terabit/sec VCSEL-based parallel optical module based on holey CMOS transceiver IC10.1109/JLT.2012.2217938 ↗
3. Chacinski, M., Chitica, N., Molin, S., Lalic, N., and Sahlén, O. (2013, January 17–21). 25.78 Gbps data transmission with 850 nm multimode VCSEL packaged in QSFP form factor module. Proceedings of the 2013 Optical Fibre Communications Conference (OFC), Anaheim, CA, USA. Paper OW1B.1.10.1364/OFC.2013.OW1B.1 ↗
4. Tsunoda, Y., Shibasaki, T., Oku, H., Ide, S., Mori, T., Koyanagi, Y., Tanaka, K., Ishihara, T., and Tamura, H. (2015, January 22–26). 25.78-Gb/s VCSEL-based optical transceiver with retimer embedded driver and receiver ICs. Proceedings of the Optical Fiber Communications Conference (OFC), Los Angeles, CA, USA. Paper Tu3G.4.10.1364/OFC.2015.Tu3G.4 ↗
5. Tsunoda, Y., Shibasaki, T., Oku, H., Matsui, J., Shiraishi, T., Ide, S., Mori, T., Koyanagi, Y., and Tamura, H. (2016, January 20–24). 24 to 34-Gb/s × 4 multi-rate VCSEL-based optical transceiver with referenceless CDR. Proceedings of the Optical Fiber Communications Conference (OFC), Anaheim, CA, USA. Paper Th4D.4.10.1364/OFC.2016.Th4D.4 ↗
6. A Record 1-km MMF NRZ 25.78-Gb/s Error-Free Link Using a 1060-nm DIC VCSEL10.1109/LPT.2015.2496912 ↗
7. A compact 310-Gb/s Optical Transceiver for High-Density Optical Interconnects10.1109/LPT.2017.2648823 ↗
8. (2017, October 09). SFF-8436 Specification for QSFP+ 10 Gbs 4x Pluggable Transceiver. Available online: http://www.optixcom.com/product_pdf/1.duplex/3-QSFP/QSFP_MSA.pdf.
9. (2017, October 09). MicroQSFP Multi-Source Agreement (MSA). Available online: http://www.microqsfp.com/.