22 February 2018 All silicon approach to modulation and detection at λ = 2 μm
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Proceedings Volume 10538, Optical Interconnects XVIII; 105380Y (2018) https://doi.org/10.1117/12.2288951
Event: SPIE OPTO, 2018, San Francisco, California, United States
Abstract
Silicon photonics has traditionally focused on near infrared wavelengths, with tremendous progress seen over the past decade. However, more recently, research has extended into mid infrared wavelengths of 2 μm and beyond. Optical modulators are a key component for silicon photonics interconnects at both the conventional communication wavelengths of 1.3 μm and 1.55 μm, and the emerging mid-infrared wavelengths. The mid-infrared wavelength range is particularly interesting for a number of applications, including sensing, healthcare and communications. The absorption band of conventional germanium photodetectors only extends to approximately 1.55 μm, so alternative methods of photodetection are required for the mid-infrared wavelengths. One possible CMOS compatible solution is a silicon defect detector. Here, we present our recent results in these areas. Modulation at the wavelength of 2 μm has been theoretically investigated, and photodetection above 25 Gb/s has been practically demonstrated.
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Callum G. Littlejohns, Callum G. Littlejohns, Milos Nedeljkovic, Milos Nedeljkovic, Wei Cao, Wei Cao, Jordi Soler Penades, Jordi Soler Penades, David Hagan, David Hagan, Jason J. Ackert, Jason J. Ackert, Mohamed Saïd Rouifed, Mohamed Saïd Rouifed, Wanjun Wang, Wanjun Wang, Zecen Zhang, Zecen Zhang, Haodong Qiu, Haodong Qiu, Tina Guo Xin, Tina Guo Xin, Andrew P. Knights, Andrew P. Knights, Graham T. Reed, Graham T. Reed, Goran Z. Mashanovich, Goran Z. Mashanovich, Hong Wang, Hong Wang, David J. Thomson, David J. Thomson, } "All silicon approach to modulation and detection at λ = 2 μm", Proc. SPIE 10538, Optical Interconnects XVIII, 105380Y (22 February 2018); doi: 10.1117/12.2288951; https://doi.org/10.1117/12.2288951
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