Modulators – Amplitude modulator – Nonlinear device controlled by modulating signal
Patent
1984-09-21
1987-04-14
Moskowitz, Nelson
Modulators
Amplitude modulator
Nonlinear device controlled by modulating signal
350 9614, 350356, G02B 514
Patent
active
046582240
ABSTRACT:
A method of increasing the available bandwidth of a high speed modulator in which an optical signal is modulated by a microwave signal (v) along an interaction distance (L). After passing half the interaction distance (L/2) the modulating signal is pole reversed by a positive (+E) and a negative (-E) bias voltage being connected to two different sections of the interaction distance. An apparatus according the method in an optical directional coupler modulator is described.
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Djupsjobacka Anders G.
Thylen Lars H.
Moskowitz Nelson
Telefonaktiebolaget LM Ericsson
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