Beam shaping for ultra-compact waveguide crossings on monolithic silicon photonics platform

Sujith Chandran; Marcus Dahlem; Yusheng Bian; Paulo Moreira; Ajey P. Jacob; Michal Rakowski; Andy Stricker; Karen Nummy; Colleen Meagher; Bo Peng; Abu Thomas; Shuren Hu; Jan Petykiewicz; Zoey Sowinski; Won Suk Lee; Rod Augur; Dave Riggs; Ted Letavic; Anthony Yu; Ken Giewont; John Pellerin; Jaime Viegas

doi:10.1364/OL.402446

Beam shaping for ultra-compact waveguide crossings on monolithic silicon photonics platform

Sujith Chandran, Marcus Dahlem, Yusheng Bian, Paulo Moreira, Ajey P. Jacob, Michal Rakowski, Andy Stricker, Karen Nummy, Colleen Meagher, Bo Peng, Abu Thomas, Shuren Hu, Jan Petykiewicz, Zoey Sowinski, Won Suk Lee, Rod Augur, Dave Riggs, Ted Letavic, Anthony Yu, Ken GiewontJohn Pellerin, Jaime Viegas

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

A beam shaping approach has been implemented to realize high-performance waveguide crossings based on cosine tapers. Devices with a compact footprint of 4.7 µm × 4.7 µm were fabricated on the GLOBALFOUNDRIES 45 nm monolithic silicon photonics platform (45 CLO technology). Fabricated devices are found to be nearly wavelength independent (±0.035 dB for 1260 nm ≤ λ ≤ 1360 nm) with low insertion loss (∼ 0.2 dB) and crosstalk (−35 dB). The measured response of the devices is consistent with the three-dimensional finite-difference time-domain simulation results. The design stability is validated by measuring the device insertion loss on eight chips, which is found to be 0.197 ± 0.017 dB at the designed center wavelength of 1310 nm.

Original language	British English
Pages (from-to)	6230-6233
Number of pages	4
Journal	Optics Letters
Volume	45
Issue number	22
DOIs	https://doi.org/10.1364/OL.402446
State	Published - 15 Nov 2020

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Chandran, S., Dahlem, M., Bian, Y., Moreira, P., Jacob, A. P., Rakowski, M., Stricker, A., Nummy, K., Meagher, C., Peng, B., Thomas, A., Hu, S., Petykiewicz, J., Sowinski, Z., Lee, W. S., Augur, R., Riggs, D., Letavic, T., Yu, A., ... Viegas, J. (2020). Beam shaping for ultra-compact waveguide crossings on monolithic silicon photonics platform. Optics Letters, 45(22), 6230-6233. https://doi.org/10.1364/OL.402446

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title = "Beam shaping for ultra-compact waveguide crossings on monolithic silicon photonics platform",

abstract = "A beam shaping approach has been implemented to realize high-performance waveguide crossings based on cosine tapers. Devices with a compact footprint of 4.7 µm × 4.7 µm were fabricated on the GLOBALFOUNDRIES 45 nm monolithic silicon photonics platform (45 CLO technology). Fabricated devices are found to be nearly wavelength independent (±0.035 dB for 1260 nm ≤ λ ≤ 1360 nm) with low insertion loss (∼ 0.2 dB) and crosstalk (−35 dB). The measured response of the devices is consistent with the three-dimensional finite-difference time-domain simulation results. The design stability is validated by measuring the device insertion loss on eight chips, which is found to be 0.197 ± 0.017 dB at the designed center wavelength of 1310 nm.",

author = "Sujith Chandran and Marcus Dahlem and Yusheng Bian and Paulo Moreira and Jacob, {Ajey P.} and Michal Rakowski and Andy Stricker and Karen Nummy and Colleen Meagher and Bo Peng and Abu Thomas and Shuren Hu and Jan Petykiewicz and Zoey Sowinski and Lee, {Won Suk} and Rod Augur and Dave Riggs and Ted Letavic and Anthony Yu and Ken Giewont and John Pellerin and Jaime Viegas",

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Chandran, S, Dahlem, M, Bian, Y, Moreira, P, Jacob, AP, Rakowski, M, Stricker, A, Nummy, K, Meagher, C, Peng, B, Thomas, A, Hu, S, Petykiewicz, J, Sowinski, Z, Lee, WS, Augur, R, Riggs, D, Letavic, T, Yu, A, Giewont, K, Pellerin, J & Viegas, J 2020, 'Beam shaping for ultra-compact waveguide crossings on monolithic silicon photonics platform', Optics Letters, vol. 45, no. 22, pp. 6230-6233. https://doi.org/10.1364/OL.402446

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AU - Chandran, Sujith

AU - Dahlem, Marcus

AU - Bian, Yusheng

AU - Moreira, Paulo

AU - Jacob, Ajey P.

AU - Rakowski, Michal

AU - Stricker, Andy

AU - Nummy, Karen

AU - Meagher, Colleen

AU - Peng, Bo

AU - Thomas, Abu

AU - Hu, Shuren

AU - Petykiewicz, Jan

AU - Sowinski, Zoey

AU - Lee, Won Suk

AU - Augur, Rod

AU - Riggs, Dave

AU - Letavic, Ted

AU - Yu, Anthony

AU - Giewont, Ken

AU - Pellerin, John

AU - Viegas, Jaime

PY - 2020/11/15

Y1 - 2020/11/15

N2 - A beam shaping approach has been implemented to realize high-performance waveguide crossings based on cosine tapers. Devices with a compact footprint of 4.7 µm × 4.7 µm were fabricated on the GLOBALFOUNDRIES 45 nm monolithic silicon photonics platform (45 CLO technology). Fabricated devices are found to be nearly wavelength independent (±0.035 dB for 1260 nm ≤ λ ≤ 1360 nm) with low insertion loss (∼ 0.2 dB) and crosstalk (−35 dB). The measured response of the devices is consistent with the three-dimensional finite-difference time-domain simulation results. The design stability is validated by measuring the device insertion loss on eight chips, which is found to be 0.197 ± 0.017 dB at the designed center wavelength of 1310 nm.

AB - A beam shaping approach has been implemented to realize high-performance waveguide crossings based on cosine tapers. Devices with a compact footprint of 4.7 µm × 4.7 µm were fabricated on the GLOBALFOUNDRIES 45 nm monolithic silicon photonics platform (45 CLO technology). Fabricated devices are found to be nearly wavelength independent (±0.035 dB for 1260 nm ≤ λ ≤ 1360 nm) with low insertion loss (∼ 0.2 dB) and crosstalk (−35 dB). The measured response of the devices is consistent with the three-dimensional finite-difference time-domain simulation results. The design stability is validated by measuring the device insertion loss on eight chips, which is found to be 0.197 ± 0.017 dB at the designed center wavelength of 1310 nm.

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JO - Optics Letters

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Beam shaping for ultra-compact waveguide crossings on monolithic silicon photonics platform

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