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Integration of GaAs-based VCSEL array on SiN platform with HCG reflectors for WDM applications

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Abstract
We present a GaAs-based VCSEL structure, BCB bonded to a Si3N4 waveguide circuit, where one DBR is substituted by a free-standing Si3N4 high-contrast-grating (HCG) reflector realized in the Si3N4 waveguide layer. This design enables solutions for on-chip spectroscopic sensing, and the dense integration of 850-nm WDM data communication transmitters where individual channel wavelengths are set by varying the HCG parameters. RCWA shows that a 300nm-thick Si3N4 HCG with 800nm period and 40% duty cycle reflects strongly (>99%) over a 75nm wavelength range around 850nm. A design with a standing-optical-field minimum at the III-V/airgap interface maximizes the HCG's influence on the VCSEL wavelength, allowing for a 15-nm-wide wavelength setting range with low threshold gain (<1000 cm(-1)).
Keywords
silicon nitride waveguide, silicon photonics, vertical cavity surface emitting laser, integration, high contrast grating

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MLA
Kumari, Sulakshna et al. “Integration of GaAs-based VCSEL Array on SiN Platform with HCG Reflectors for WDM Applications.” Proceedings of SPIE. Vol. 9372. BELLINGHAM: SPIE-INT SOC OPTICAL ENGINEERING, 2015. Print.
APA
Kumari, Sulakshna, Gustavsson, J., Wang, R., Haglund, E., Westbergh, P., Sanchez, D., Haglund, E., et al. (2015). Integration of GaAs-based VCSEL array on SiN platform with HCG reflectors for WDM applications. Proceedings of SPIE (Vol. 9372). Presented at the Conference on High Contrast Metastructures IV, BELLINGHAM: SPIE-INT SOC OPTICAL ENGINEERING.
Chicago author-date
Kumari, Sulakshna, JS Gustavsson, Ruijun Wang, EP Haglund, P Westbergh, D Sanchez, E Haglund, et al. 2015. “Integration of GaAs-based VCSEL Array on SiN Platform with HCG Reflectors for WDM Applications.” In Proceedings of SPIE. Vol. 9372. BELLINGHAM: SPIE-INT SOC OPTICAL ENGINEERING.
Chicago author-date (all authors)
Kumari, Sulakshna, JS Gustavsson, Ruijun Wang, EP Haglund, P Westbergh, D Sanchez, E Haglund, A Haglund, J Bengtsson, Nicolas Le Thomas, Günther Roelkens, A Larsson, and Roel Baets. 2015. “Integration of GaAs-based VCSEL Array on SiN Platform with HCG Reflectors for WDM Applications.” In Proceedings of SPIE. Vol. 9372. BELLINGHAM: SPIE-INT SOC OPTICAL ENGINEERING.
Vancouver
1.
Kumari S, Gustavsson J, Wang R, Haglund E, Westbergh P, Sanchez D, et al. Integration of GaAs-based VCSEL array on SiN platform with HCG reflectors for WDM applications. Proceedings of SPIE. BELLINGHAM: SPIE-INT SOC OPTICAL ENGINEERING; 2015.
IEEE
[1]
S. Kumari et al., “Integration of GaAs-based VCSEL array on SiN platform with HCG reflectors for WDM applications,” in Proceedings of SPIE, San Francisco, CA, 2015, vol. 9372.
@inproceedings{7182435,
  abstract     = {We present a GaAs-based VCSEL structure, BCB bonded to a Si3N4 waveguide circuit, where one DBR is substituted by a free-standing Si3N4 high-contrast-grating (HCG) reflector realized in the Si3N4 waveguide layer. This design enables solutions for on-chip spectroscopic sensing, and the dense integration of 850-nm WDM data communication transmitters where individual channel wavelengths are set by varying the HCG parameters. RCWA shows that a 300nm-thick Si3N4 HCG with 800nm period and 40% duty cycle reflects strongly (>99%) over a 75nm wavelength range around 850nm. A design with a standing-optical-field minimum at the III-V/airgap interface maximizes the HCG's influence on the VCSEL wavelength, allowing for a 15-nm-wide wavelength setting range with low threshold gain (<1000 cm(-1)).},
  articleno    = {93720U},
  author       = {Kumari, Sulakshna and Gustavsson, JS and Wang, Ruijun and Haglund, EP and Westbergh, P and Sanchez, D and Haglund, E and Haglund, A and Bengtsson, J and Le Thomas, Nicolas and Roelkens, Günther and Larsson, A and Baets, Roel},
  booktitle    = {Proceedings of SPIE},
  isbn         = {978-1-62841-462-2},
  issn         = {0277-786X},
  keywords     = {silicon nitride waveguide,silicon photonics,vertical cavity surface emitting laser,integration,high contrast grating},
  language     = {eng},
  location     = {San Francisco, CA},
  pages        = {7},
  publisher    = {SPIE-INT SOC OPTICAL ENGINEERING},
  title        = {Integration of GaAs-based VCSEL array on SiN platform with HCG reflectors for WDM applications},
  url          = {http://dx.doi.org/10.1117/12.2077090},
  volume       = {9372},
  year         = {2015},
}

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