DRIVING CIRCUIT FOR OPTICAL MODULATOR

DRIVING CIRCUIT FOR OPTICAL MODULATOR

A driving circuit includes a first differential amplifier, wherein the first differential amplifier includes: a delay adjustment circuit that generates a second differential signal by delaying a first differential signal in response to instantaneous voltage level of the first differential signal; a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: TATSUMI, Taizo
Format: Patent
Sprache:eng
Schlagworte:
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
ELECTRICITY
FREQUENCY-CHANGING
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
PULSE TECHNIQUE
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:A driving circuit includes a first differential amplifier, wherein the first differential amplifier includes: a delay adjustment circuit that generates a second differential signal by delaying a first differential signal in response to instantaneous voltage level of the first differential signal; a differential circuit that divides a source current into a first current and a second current in response to the second differential signal; and a first load resistor and a second load resistor that generate a positive phase component and a negative phase component of the differential output signal based on the first current and the second current, wherein a third differential amplifier operates in a non-saturated region when a voltage level of the first differential signal is in an input voltage range, and operates in a saturated region when the voltage level of the first differential signal is out of the input voltage range.