Patent
Frequency modulation by light impingement on a solid state oscillator
TLDR
Frequency modulation by varying the intensity of light impinging on a three-terminal GaAs microwave oscillator was studied in this paper, where the frequency was modelled as a Gaussian distribution.Abstract:
Frequency modulation by varying the intensity of light impinging on a three terminal GaAs microwave oscillator.read more
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Patent
Optical injection locking of solid-state oscillators by frequency-multiplexed injection-locked, laser diodes
TL;DR: The optical injection-locking of an FET oscillator is accomplished by injecting the beat signal between two coherently mixed slave lasers, which are locked to different harmonics of a modulated master laser, into the FET to be locked.
Patent
Gallium arsenide burrus FET structure for optical detection
Luis Figueroa,Huan-Wun Yen +1 more
TL;DR: In this article, a GaAs FET structure with a high electric field region, or active region, contacted by source, gate and drain electrodes is provided which can be used for high speed optical detection or for microwave oscillator optical injection locking.
Patent
System for optical injection phase locking and switching of microwave oscillators
TL;DR: In this article, a microwave signal is used to modulate a laser diode and the resultant modulated light output energy from the diode is applied through an optical fiber waveguide to the active solid state component in a microwave oscillator circuit such that the output signal from the microwave oscillators is phase locked to the modulation carried by the light energy.
Patent
Method of fabricating gallium arsenide burris FET structure for optical detection
Luis Figueroa,Huan-Wun Yen +1 more
TL;DR: In this article, a GaAs FET structure with a high electric field region, or active region, contacted by source, gate and drain electrodes is provided which can be used for high speed optical detection or for microwave oscillator optical injection locking.
Patent
Method and apparatus for ultrasonic detection of near-surface discontinuities
TL;DR: In this article, near-surface discontinuities, or flaws, within a workpiece are determined by transmitting acoustic energy into the workpiece and the acoustic energy will resonate in the section of the material between the discontinuity and the surface.
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Related Papers (5)
Injection-induced modulation of laser light by the interaction of laser diodes
J. Nishizawa,K. Ishida +1 more