1. An optical signal processing device comprising:
one or more optical signal processing sections;
a dividing device that divides an input optical signal into a first component and a second component orthogonal to the first component, the first component being supplied to one of the optical signal processing sections at a predetermined polarization angle, the second component being supplied to another one of the optical signal processing sections at a predetermined polarization angle; and
a combination device that combines output light from the one optical signal processing section and output light from the other one optical signal processing section.
2. The optical signal processing device of claim 1, further comprising:
an optical clock regeneration unit that regenerates an optical clock from the input optical signal; and
a wavelength conversion unit that is supplied with the input optical signal and the regenerated optical clock, and generates an output optical signal having a predetermined polarization state and including an intensity-modulated signal of the input optical signal at the wavelength of the regenerated optical clock, the optical signal output from the wavelength conversion unit being supplied to the one optical signal processing section and the other one optical signal processing section.
3. The optical signal processing device of claim 1, further comprising:
a continuum light generating unit that outputs a continuum laser beam; and
a wavelength conversion unit that is supplied with the input optical signal and the continuum laser beam, and generates an output optical signal having a predetermined polarization state and including an intensity-modulated signal of the input optical signal at the wavelength of the continuum laser beam, an optical signal output from the wavelength conversion unit being supplied to the one optical signal processing section and the other one optical signal processing section.
4. The optical signal processing device of claim 1, further comprising:
an optical amplification unit that amplifies the input optical signal, an optical signal output from the optical amplification unit being supplied to the one optical signal processing section and the other one optical signal processing section;
an optical detection unit that detects power of the input optical signal; and
a gain control unit that controls a gain of the optical amplification unit according to the power of the input optical signal detected by the optical detection unit.
5. The optical signal processing device of 4, further including:
a bias light source that outputs bias light to be combined with the optical signal output from the optical amplification unit, said combined light being supplied to the one optical signal processing section.
6. The optical signal processing device of claim 4, further comprising:
a plurality of gain devices having different saturation characteristics;
a driving current control unit that calculates gains of the gain devices in the optical signal processing section from a power level of the optical signal output from the optical amplification unit and respective power levels of optical signals output from the gain devices, and controls driving currents of the respective gain devices so that the gains of the gain devices become predetermined values.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A distribution line structure for electric power supply comprising:
a pair of first conductors, each of the first conductors including a first main portion formed in a flat strip shape and first connection portions, the first conductors being connected with each other at the first connection portions; and
a second conductor including a second main portion formed in a flat strip shape and second connection portions,
the first and second main portions being layered and separated each other by insulators, wherein the second main portion is put between the first main portions.
2. A distribution line structure for a bridge circuit supplying an intermittent current from a direct current power source to a load, comprising:
a pair of first conductors each of the first conductors including a first main portion formed in a flat strip shape and first connection portions, the first conductors being connected with each other at the first connection portions;
a pair of second conductors each of the second conductors including a second main portion formed in a flat strip shape and second connection portions, the second conductors being connected with each other at the second connection portions; and
a third conductor including a third main portion formed in a flat strip shape and third connection portions,
the first, second and third main portions being layered and separated each other by insulators, wherein the second main portions are aligned on both sides of the third main portion and the second and third main portions are put between the first main portions,
the first conductors and the second conductors being connected with the direct current power source, and
the third conductor being connected with the load.
3. A distribution line structure for a bridge circuit supplying an intermittent current from a direct current power source to a load, comprising:
a pair of first conductors, each of the first conductors including a first main portion formed in a flat strip shape and first connection portions, the first conductors being connected with each other at the first connection portions;
a pair of second conductors, each of the second conductors including a second main portion formed in a flat strip shape and second connection portions, the second conductors being connected with each other at the second connection portions; and
a third conductor including a third main portion formed in a flat strip shape and third connection portions,
the first, second and third main portions being layered and separated each other by insulators, wherein the second main portions are aligned on both sides of the third main portion and the second and third main portions are put between the first main portions,
the first conductors being connected with the load, and
the second conductors and third conductor being connected with the direct current power source.
4. A distribution line structure for a bridge circuit supplying an intermittent current from a direct current power source to a load, comprising:
a pair of first conductors, each of the first conductors including a first main portion formed in a flat strip shape and first connection portions, the first conductors being connected with each other at the first connection portions;
a pair of second conductors, each of the second conductors including a second main portion formed in a flat strip shape and second connection portions, the second conductors being connected with each other at the second connection portions; and
a third conductor including a third main portion formed in a flat strip shape and third connection portions,
the first, second and third main portions being layered and separated each other by insulators, wherein the second main portions are aligned on both sides of the third main portion and the second and third main portions are put between the first main portions,
the first conductors and the third conductor being connected with the direct current power source and
the second conductors being connected with the load.
5. A distribution line structure for a bridge circuit supplying an intermittent current from a direct current power source to a load, comprising:
a pair of first conductors, each of the first conductors including a first main portion formed in a flat strip shape and first connection portions, the first conductors being connected with each other at the first connection portions;
a pair of second conductors, each of the second conductors including a second main portion formed in a flat strip shape and second connection portions, the second conductors being connected with each other at the second connection portions;
a third conductor including a third main portion formed in a flat strip shape and third connection portions; and
a fourth conductor including a fourth main portion formed in a flat strip shape and fourth connection portions,
the first, second, third and fourth main portions being layered and separated each other by insulators, wherein the third main portion and the fourth main portions are aligned side by side, the second main portions being aligned on both sides of the third and fourth main portions and the second, third and fourth main portions are put between the first main portions,
the first conductors and the second conductors being connected with the direct current power source, and
the third conductor and the fourth conductor being connected with the load.
6. A distribution line structure for a bridge circuit supplying an intermittent current from a direct current power source to a three-terminal load, comprising:
a pair of first conductors, each of the first conductors including a first main portion formed in a flat strip shape and first connection portions, the first conductors being connected with each other at the first connection portions;
a pair of second conductors, each of the second conductors including a second main portion formed in a flat strip shape and second connection portions, the second conductors being connected with each other at the second connection portions;
a third conductor including a third main portion formed in a flat strip shape and third connection portions;
a fourth conductor including a fourth main portion formed in a flat strip shape and fourth connection portions; and
a fifth conductor including a fifth main portion formed in a flat strip shape and fifth connection portions;
the first, second, third, fourth and fifth main portions being layered and separated each other by insulators, wherein the third, fourth and fifth main portions are aligned side by side, the second main portions are aligned on both sides of the third, fourth and fifth main portions and the second, third, fourth and fifth main portions are put between the first main portions,
the first conductors and the second conductors being connected with the direct current power source, and
the third conductor, the fourth conductor and the fifth conductor being respectively connected with each terminal of the three-terminal load.
7. The distribution line structure of claim 1, wherein:
the second main portion comprises a through hole and the first conductors are connected with each other through the through hole, and
the first main portion comprises through holes so that the second conductor sandwiched by the first conductors is exposed through the through holes.
8. The distribution line structure of claim 1, wherein:
the second main portion is not intersected either of line segments, each of the line segments being connected from a point on the inner edges of one of the first main portions and a point on the respective nearest inner edges of another of the first main portions.
9. The distribution line structure of claim 8, wherein:
the distances between the second main portion and the line segments are more than times of length of the line segments.
10. The distribution line structure of claim 8, wherein:
edge portions of either or both of the first main portions are bent toward the opposite first main portion.
11. The distribution line structure of claim 8, wherein:
edge portions of either or both of the first main portions are bent toward the opposite first main portion and the length of the line segments are zero.
12. The distribution line structure of claim 1, wherein:
the total cross-sectional area of the first main portions is not larger than the cross-sectional area of the second main portion.
13. The distribution line structure of claim 2, wherein:
the total cross-sectional area of the first main portions is not larger than the total cross-sectional area of the third retain portions, and the total cross-sectional area of the second main portions is not larger than the total cross-sectional area of the third main portions.
14. The distribution line structure of claim 1, further comprising:
additional conductors covering side edges of the first main portions, the additional conductors being connected with either or both of the first main portions.
15. A distribution line structure for electric power supply comprising:
a first conductor including a first main portion formed in a flat strip shape and first connection portions;
a second conductor; and
a third conductor including a third main portion formed in a flat strip shape and third connection portions,
the first and third main portions being layered,
the second conductor enfolding the third main portion so as to be connected with the first main portion, and
the third conductor being separated from the first conductor and the second conductor by insulators.
16. A distribution line structure for a bridge circuit supplying an intermittent current from a direct current power source to a load, comprising:
a first conductor including a first main portion formed in a flat strip shape and first connection portions;
a second conductor;
a third conductors including a third main portion formed in a flat strip shape and third connection portions; and
a fourth conductor including a fourth main portion formed in a flat strip shape and fourth connection portions,
the first, third and fourth main portions being layered and separated each other by insulators,
the second conductor enfolding the third and fourth main portions so as to be connected with the first main portion, the first conductor, the second conductor and the fourth conductor being connected with the direct current power source, and
the third conductor being connected with the load.
17. The distribution line structure of claim 14, wherein:
the additional conductors are conductive thin films, conductive mesh-like thin films or aggregations of conductive threads.
18. The distribution line structure of claim 15, wherein:
the second conductor is a conductive thin film, a conductive mesh-like thin film or an aggregation of conductive threads.