Demonstration of the heterostructure field‐effect transistor as an optical modulator

1991 ◽  
Vol 59 (9) ◽  
pp. 1031-1033 ◽  
Author(s):  
G. W. Taylor ◽  
T. Vang ◽  
S. K. Sargood ◽  
P. Cooke ◽  
P. Claisse
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Optical Modulator ◽  
Effect Transistor

Frequency-shift keyed generation with an optically controlled GaAs field-effect transistor in a surface-acoustic-wave oscillator circuit

1987 ◽  
Vol 65 (8) ◽  
pp. 929-936
Author(s):  
O. Berolo
Keyword(s):  
Acoustic Wave ◽  
Frequency Shift ◽  
Surface Acoustic Wave ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Open Circuit ◽  
Low Noise ◽  
Optical Modulator ◽  
Oscillator Circuit ◽  
Effect Transistor

A prototype circuit for potential optical integration was developed and evaluated for the generation of frequency-shift keyed (FSK) signals by simultaneously exploiting surface-acoustic wave (SAW) technology and the optical response of the GaAs field-effect transistor (FET).A SAW delay line to be utilized in the feedback path of an oscillator circuit was designed for operation at the fundamental frequency of 111 MHz and operated at its 12th harmonic (1.33 GHz). A low-noise FET was incorporated into the circuit in series with the SAW delay, and a low-power He:Ne laser was focussed through an optical modulator onto the FET structure. The gate bias, which controls the phase shift in the feedback loop of the oscillator, was applied via the open-circuit photovoltage induced at the Schottky-barrier junction of the FET.The optical modulator was driven by a pseudorandom bit generator to obtain FSK generation by the oscillator circuit. Results of the frequency spectrum of the oscillator signal as a function of bit rate and light intensity on the FET were obtained. The successful performance of the circuit indicated that integration of all these elements on GaAs would yield a useful device for FSK signal generation.Un prototype de circuit pour intégration optique potentielle a été développé et évalué pour la génération de signaux FSK (frequency-shift keyed), en exploitant simultanéement la technologie des ondes acoustiques de surface et la réponse optique du transistor GaAs à effet de champ.

Heterostructure field‐effect transistor optical modulator in the InGaAs/AlGaAs material system

1992 ◽  
Vol 61 (20) ◽  
pp. 2464-2466 ◽  
Author(s):  
T. A. Vang ◽  
G. W. Taylor ◽  
P. A. Evaldsson ◽  
P. Cooke
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Optical Modulator ◽  
Material System ◽  
Effect Transistor

Simulation of Gate-All-Around Tunnel Field-Effect Transistor with an n-Doped Layer

2010 ◽  
Vol E93-C (5) ◽  
pp. 540-545 ◽  
Author(s):  
Dong Seup LEE ◽  
Hong-Seon YANG ◽  
Kwon-Chil KANG ◽  
Joung-Eob LEE ◽  
Jung Han LEE ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Effect Transistor ◽  
Tunnel Field Effect Transistor

InGaAs/Si Heterojunction Tunneling Field-Effect Transistor on Silicon Substrate

2014 ◽  
Vol E97.C (7) ◽  
pp. 677-682
Author(s):  
Sung YUN WOO ◽  
Young JUN YOON ◽  
Jae HWA SEO ◽  
Gwan MIN YOO ◽  
Seongjae CHO ◽  
...  
Keyword(s):  
Silicon Substrate ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Effect Transistor

Biosensor Based on Ion-Sensitive Field-Effect Transistor Using Minimum Contact to Float-ing Gate

2019 ◽  
Vol 24 (4) ◽  
pp. 407-414
Author(s):  
Oksana V. Gubanova ◽  
◽  
Evgeniy V. Kuznetsov ◽  
Elena N. Rybachek ◽  
Alexander N. Saurov ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Effect Transistor
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