Time-domain model for an avalanche photodiode at low-bias

N. R. Das; M. Jamal Deen

doi:10.1117/12.441319

25 September 2001 Time-domain model for an avalanche photodiode at low-bias

N. R. Das, M. Jamal Deen

Proceedings Volume 4417, Photonics 2000: International Conference on Fiber Optics and Photonics; (2001) https://doi.org/10.1117/12.441319
Event: Photonics 2000: International Conference on Fiber Optics and Photonics, 2001, Calcutta, India

Abstract

A study of the performance of an Avalanche Photodiode (APD) at low bias using time-domain modeling has been conducted. Three important considerations in this range of bias voltages are: the emission of holes from the interface-trap at the valence-band discontinuity; the diffusion of photogenerated holes from the undepleted region of the absorption layer; and the velocity of carriers at low electric fields. A new recurrence relation has been obtained for the emission of holes from the valance-band trap. The time-delays due to the diffusion of holes photogenerated in the undepleted region of the absorption layer has been taken into account in computing the impulse response of the APD in time-domain. The effect of velocity of the carriers at low- bias has been considered by using a field-dependent formulation for velocity. The frequency response of the device has been obtained by using the fast Fourier Transform of the impulse response in time-domain. The result on the gain-bias and bandwidth-gain characteristics show good agreement with the published experimental data on InP/InGaAs APDs.

Citation Download Citation

N. R. Das and M. Jamal Deen "Time-domain model for an avalanche photodiode at low-bias", Proc. SPIE 4417, Photonics 2000: International Conference on Fiber Optics and Photonics, (25 September 2001); https://doi.org/10.1117/12.441319

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