Polarization scrambler and optical network using the same

Details Polarization scrambler and optical network using the same Polarization scrambler and optical network using the same

2006-04-18

2006-04-18

Sedighian, M. R. (Department: 2633)

Optical communications

Transmitter and receiver system

Including polarization

C398S065000, C398S184000

Reexamination Certificate

active

07031614

ABSTRACT:
To generate light with the degree of polarization zeroed and the spread of an optical spectrum suppressed even with temporal overlapping between optical pulses each of which is polarized orthogonally to the succeeding pulse, a polarization scrambler includes an optical pulse generator that generates optical pulses with an intensity waveform repetition T/2 and an electrical field repetition period T in which the same intensity waveform is repeated every repetition period T/2 and in which phase is inverted every repetition period T/2, and an orthogonal polarization delay unit which receives each of the optical pulses, separates the optical pulse into two optical pulses with orthogonal states of polarization, and relatively shifts the temporal position of one of the two optical pulses from that of the other optical pulse by (2n−1)T/4 (n is a natural number) to generate light in which each pulse is polarized orthogonally to a succeeding pulse.

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