Current Optics and Photonics

Optical Society of Korea (한국광학회)
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A Cost-competitive Optical Receiver Engine Based on Embedded Optics Technology for 400G PAM4 Optical Transceivers in Data Center Applications

  • Received : 2021.01.13
  • Accepted : 2021.02.17
  • Published : 2021.04.25
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Abstract

We propose a novel, tiny optical receiver engine utilizing an all-in-one package based on embedded optics technology. The package's best transmission S21 and reflection S22 opto-electric (OE) bandwidths are 49.8 GHz and 34.9 GHz, respectively, and the reflectance of the optical engine is below -31.7 dB for all channels. The engine satisfies the MIL-STD-883G standard for reliability tests, such as mechanical and thermal shock, and vibration resistance. The sensitivity after 10 km single-mode fiber (SMF) transmission is below -8 dBm. The optical receiver engine is cost-competitive and applicable for 400G coarse wavelength division multiplexing 4 (CWDM4) 10 km optical transceivers.

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References

  1. M. Camera, B. E. Olsson, and G. Bruno, "Beyond 100 Gbit/s: system implications towards 400G and 1T," in Proc. 36th European Conference and Exhibition on Optical Communication (Torino, Italy, Sept. 2010), pp. 1-15.
  2. T.-T. Shih, P.-H. Tseng, Y.-Y. Lai, and W.-H. Cheng, "A 25 Gbit/s transmitter optical sub-assembly package employing cost-effective TO-CAN materials and processes," J. Lightwave Technol. 30, 834-840 (2012). https://doi.org/10.1109/JLT.2011.2182335
  3. W. Kobayashi, T. Tadokoro, T. Fujisawa, N. Fujiwara, T. Yamanaka, and F. Kano, "40-Gbps direct modulation of 1.3-㎛ InGaAlAs DFB laser in compact TO-CAN package," in Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (Los Angeles, CA, USA. Mar. 2011), pp. 1-3.
  4. S. K. Kang, J. Y. Huh, J. T. Song, and J. K. Lee, "A verification of hybrid-integrated 400-Gb/s (4 × 100 Gb/s) CWDM4 ROSA using a bandwidth-improved multilayer board," Opt. Express 28, 33094-33105 (2020). https://doi.org/10.1364/OE.405107
  5. E.-G. Lee, S.-G. Mun, S. S. Lee, J. C. Lee, and J. H. Lee, "Compactly packaged monolithic four-wavelength VCSEL array with 100-GHz wavelength spacing for future-proof mobile fronthaul transport," Opt. Express 23, 284-291 (2015). https://doi.org/10.1364/OE.23.000284
  6. Y.-T. Han, O.-K. Kwon, D.-H. Lee, C.-W. Lee, Y.-A. Leem, J.-U. Shin, S.-H. Park, and Y. Baek, "A cost-effective 25-Gb/s EML TOSA using all-in-one FPCB wiring and metal optical bench," Opt. Express 21, 26962-26971 (2013). https://doi.org/10.1364/OE.21.026962
  7. K. Zhong1, J. Mo, R. Grzybowski, and A. P. T. Lau, "400 Gbps PAM-4 signal transmission using a monolithic laser integrated silicon photonics transmitter," in Optical Fiber Communication Conference (San Diego, CA, USA. Mar. 2019), paper Tu2I.4.
  8. T. Kishi, H. Wakita, K. Shikama, M. Nagatani, S. Kanazawa, T. Fujii, H. Nishi, H. Ishikawa, Y. Kawajiri, A. Aratake, H. Nosaka, H. Fukuda, and S. Matsuo, "A 25-Gbps × 4 ch, lowpower compact wire-bond-free 3D-stacked transmitter module with 1.3-um LD-array-on-Si for on-board optics," in Optical Fiber Communication Conference (San Diego, CA, USA. Mar. 2019), paper Tu2I.1.
  9. R. Blum, "Integrated silicon photonics for high-volume data center applications," in SPIE 11286, 112860M (2020).
  10. J. C. Lee, J. K. Lee, E.-G. Lee, K. Jeon, S. W. Park, C. Kang, and J. H. Moon, "A study of overflowed epoxy resin in a butt-coupling with FAB and EML mounted on PCB for a compact optic design of Ethernet 100 G/400 G CWDM4 data center application," in Asia Communications and Photonics Conference (Chengdu, China, Nov. 2019), paper M4A.245.
  11. QSFP-DD hardware specification for QSFP double density 8X pluggable transceiver, QSFP-DD Hardware Rev 5.1, Aug. 2020. [Online]. Available: http://www.qsfp-dd.com/wpcontent/uploads/2020/08/QSFP-DD-Hardware-rev5.1.pdf.
  12. Department of Defense: Test Method Standard Microcircuits, MIL-STD-883G, 2006.
  13. Generic Reliability Assurance Requirements for Optoelectronic Devices Used In Telecommunications Equipment, Generic requirements GR-468-CORE ISSUE 1, 1998.
  14. J. C. Lee, E.-G. Lee, J. Yeom, K. Jeon, C. Kang, and J. H. Moon, "A compact optics embedded optical receiver engine mounted on silicon interposer for 400 G CWDM4 10 km data-center application," in Asia Communications and Photonics Conference (Beijing, China, Oct. 2020), paper T3G.3.
  15. 400G-LR4-10 Technical Specification, 400G-LR4-10 Technical Specification Draft 1.0, Sep. 2020. [Online]. Available: https://100glambda.com/specifications/send/2-specifications/10-400g-lr4-10-technical-spec-rev1-0.