OPTICAL TRANSMITTER, OPTICAL TRANSMISSION METHOD, AND OPTICAL TRANSMISSION PROGRAM
PROBLEM TO BE SOLVED: To provide an optical transmitter capable of reducing an influence of a nonlinear effect of an optical fiber, inhibiting a band required for a device from being spread, and flexibly changing over multiple modulation methods owing to easy bias control of the modulator.SOLUTION:...
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| creator | ITO KUMI SUZUKI KOICHI |
| description | PROBLEM TO BE SOLVED: To provide an optical transmitter capable of reducing an influence of a nonlinear effect of an optical fiber, inhibiting a band required for a device from being spread, and flexibly changing over multiple modulation methods owing to easy bias control of the modulator.SOLUTION: A optical transmitter 301 includes: a modulator 101 and a controller 102. The modulator 101 is a modulator capable of applying four phase deviation modulation to light from a light source and outputting it. The controller 102 controls an input signal to the modulator 101 and operates the modulator 101 in four phase deviation modulation or /2 shift two phase deviation modulation. |
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The modulator 101 is a modulator capable of applying four phase deviation modulation to light from a light source and outputting it. 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| subjects | 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 ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSMISSION |
| title | OPTICAL TRANSMITTER, OPTICAL TRANSMISSION METHOD, AND OPTICAL TRANSMISSION PROGRAM |
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