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Initial observations of optical injection locking of oscillators using heterojunction bipolar transistors.

Erste Beobachtungen zur optischen Synchronisation von Oszillatoren mit Heterobipolartransistoren

DOI: 10.1049/el:19920392

	Electronics Letters 28 (1992), No.7, pp.621-623 : Abb.,Lit. ISSN: 0013-5194

	English
	Journal Article
	Fraunhofer IAF ()
	bipolar device; bipolares Bauelement; optoelectronics; Optoelektronik; oscillator; Oszillator; transistor

Abstract
For the first time, optical phase control of a hybrid heterojunction bipolar transistor (HBT) oscillator has been achieved. The results strongly indicate that the HBT is a suitable device for optically controlled oscillators. At a frequency of oscillation of 500 MHz a locking range of more than 15 MHz was measured (Delta f/f = 3 percent). The optical tuning range of the oscillator exceed 25 MHz.