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2 117 934

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C1

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IPC

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Application

96119488/25, 1996-09-27

(22)

Actual filing date

1996-09-27

(45)

Published

1998-08-20

(72)

Inventor

Burkov V.D.Egorov F.A.Tregub D.P.Potapov V.T.Gorish A.V.Koptev Ju.N.Dekhtjar A.V.Malkov Ja.V.Kuznetsova V.I.

(73)

Holder

Moskovskij Gosudarstvennyj Universitet Lesa

FIBER-OPTIC SELF-EXCITED OSCILLATOR Russian patent published in 1998 - IPC

Abstract RU 2117934 C1

FIELD: fiber-optic self-exciting system based on micromechanical resonators, in particular, systems for measuring of various physical values (temperature, pressure, acceleration, etc). SUBSTANCE: microresonator is connected to circuit of positive feedback by bringing it to free end of single-mode light guide of fiber-glass laser. As a result, formed between reflecting surface of mirror and reflector is Fabry-Perot interferometer. Under definite conditions, continuous transverse acoustic vibrations are set up in the device with frequency determined by sizes and types of microresonator. Vibrations modulate optical radiation of fiber-optic laser on resonance frequency of microresonator. When working point of Fabry-Perot interferogram displaces from unit of control voltage, control voltage is supplied to piezoelectric transducer and working point of Fabry-Perot interferometer returns to its initial position. EFFECT: displacement of wave length of fiber-optic laser up to 40 nm. 2 dwg

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RU 2 117 934 C1

Authors

Burkov V.D.

Egorov F.A.

Tregub D.P.

Potapov V.T.

Gorish A.V.

Koptev Ju.N.

Dekhtjar A.V.

Malkov Ja.V.

Kuznetsova V.I.

Dates

1998-08-20—Published

1996-09-27—Filed

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