Optical transmitter and control method thereof

Details Optical transmitter and control method thereof Optical transmitter and control method thereof

2008-08-13

2011-10-18

Vanderpuye, Kennneth N (Department: 2613)

Optical communications

Transmitter

Having particular modulation

C398S182000, C398S183000, C398S201000

Reexamination Certificate

active

08041232

ABSTRACT:
An optical transmitter which modulates the phases and intensities of double pulses and then transmits them, includes a branching section which branches each of the input double pulses to first and second paths, a first optical modulator placed in the first path, second and third optical modulators placed in series in the second path, and a combining section which combines the double pulses having traveled through the first path with the double pulses having traveled through the second path to output double pulses. A control section controls such that each of the first and second optical modulators performs any one of relative intensity modulation and relative phase modulation on the double pulses passing through, and the third optical modulator performs relative phase modulation on the double pulses passing through.

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