Design Of MESFET Optical Amplifier

Mario N. Armenise; Anna G. Perri

doi:10.1117/12.968913

16 January 1988 Design Of MESFET Optical Amplifier

Mario N. Armenise, Anna G. Perri

Proceedings Volume 0952, Laser Technologies in Industry; (1988) https://doi.org/10.1117/12.968913
Event: Laser Technologies in Industry, 1988, Porto, Portugal

Abstract

GaAs MESFETs, originally designed for microwave applications, have become an important com ponent of receivers in high-speed optical telecommunication systems. For these applications, the crucial point in the device modeling is the evaluation of the induced gate noise and its correlation to the channel noise. In this paper the design of a low-noise small signal optical amplifier using GaAs MESFET is carried out. The principal noise sources of GaAs MESFETs are analyzed in order to completely characterize the equivalent model. Particularly channel-noise represents the dominant effect in the determination of the optical receiver sensitivity. Total input noise current of the optical amplifier, due to correlated gate and drain MESFET noise, has been estimated in order to evaluate the excess channel-noise factor r for different values of photodiode capacitance. This procedure allowed to choose the photodiode with minimum noise. At last, scattering parameters, minimum noise gain, gain-frequency dependence and bandwidth of the amplifier have been evaluated in the frequency range of interest.

Citation Download Citation

Mario N. Armenise and Anna G. Perri "Design Of MESFET Optical Amplifier", Proc. SPIE 0952, Laser Technologies in Industry, (16 January 1988); https://doi.org/10.1117/12.968913

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