Biasing effects on the characteristics and the optimization of mushroom waveguide photodetectors (WGPDs)

Yasser M. El-Batawy; Sarah Youssef

doi:10.1117/12.2069585

21 August 2014 Biasing effects on the characteristics and the optimization of mushroom waveguide photodetectors (WGPDs)

Yasser M. El-Batawy, Sarah Youssef

Proceedings Volume 9233, International Symposium on Photonics and Optoelectronics 2014; 92331S (2014) https://doi.org/10.1117/12.2069585
Event: International Symposium on Photonics and Optoelectronics (SOPO 2014), 2014, Suzhou, China

Abstract

Waveguide photodetectors (WGPDs) are considered a leading candidate to overcome the bandwidth-quantum efficiency trade-off as the flow of the photon and carrier fluxes are perpendicular to each other enabling high date rate applications. Mushroom-WGPD was proposed to overcome the trade-off between the capacitance of the photodetector and the contact resistance. In this paper, an extended calibrated circuit model for mushroom-WGPD, including the effect of the biasing of the photodetector, is presented so resulting in the feasibility of a complete circuit simulation of the entire photoreceiver circuit. The effects of the biasing over the performance of Mushroom-WGPDs have been explored for different loads and different dimensions of the device. Based on the studies of different parameters for design and materials, optimization has been performed for the mushroom-WGPD. With this optimization, the optimal values of the thickness of the absorption layer to produce the highest bandwidth of the photodetector are obtained for different biasing values. These optimizations are performed for different areas of the photodetector and also for different load resistors, and they result in a significant improvement in the performance of the mushroom-WGPDs.

Citation Download Citation

Yasser M. El-Batawy and Sarah Youssef "Biasing effects on the characteristics and the optimization of mushroom waveguide photodetectors (WGPDs)", Proc. SPIE 9233, International Symposium on Photonics and Optoelectronics 2014, 92331S (21 August 2014); https://doi.org/10.1117/12.2069585

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available