Picosecond Response Of A Planar GAAS/AL[sub]0.3[/sub]GA[sub]0.7[/sub]AS Schottky Barrier Photodiode

D. H. Lee; S. S. Li; N. G. Paulter

doi:10.1117/12.960146

17 January 1989 Picosecond Response Of A Planar GAAS/AL_0.3GA_0.7AS Schottky Barrier Photodiode

D. H. Lee, S. S. Li, N. G. Paulter

Proceedings Volume 0995, High Frequency Analog Communications; (1989) https://doi.org/10.1117/12.960146
Event: O-E/Fiber LASE '88, 1988, Boston, MA, United States

Abstract

A high-speed high-sensitivity planar GaAs/AL_0.3GA_0.7AS heterostructure Schottky barrier photodiode has been de-signed, fabricated, and characterized. A highly doped A1_0.3GA_0.7AS buffer layer is used to reduce the series resistance and the undesired diffusion tailing. Furthermore, surface passivation and antireflection coating, with various dielectric films, are performed to reduce the reverse-bias dark current and the reflection loss of the incident light, thereby significantly improves the sensitivity of the photodiode. The measured external quantum efficiency and responsivity are 60% to 77% and 0.47 A/W to 0.6 A/W, respectively, for the wavelength range of 0.5 μm to 0.84 μm. A risetime of 8.5 ps and a 3-dB cutoff frequency of 50 GHz have been measured.

Citation Download Citation

D. H. Lee, S. S. Li, and N. G. Paulter "Picosecond Response Of A Planar GAAS/AL_0.3GA_0.7AS Schottky Barrier Photodiode", Proc. SPIE 0995, High Frequency Analog Communications, (17 January 1989); https://doi.org/10.1117/12.960146

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