Optical pulse amplifier and optical pulse source
First Claim
Patent Images
1. A pulse amplifier, comprising:
- an amplification medium and a normal dispersion medium that are multistage-connected alternately, to change an input pulse to a light pulse having a linear chirp in a bandwidth range of wider than that for the input pulse and to output the light pulse,wherein the normal dispersion medium is a dispersion compensating medium and an absolute value of a dispersion of the normal dispersion medium is larger than an absolute value of a dispersion of the amplification medium,wherein each subsequent stage of the multi-stage connected media increases an intensity of the output light pulse, andwherein each subsequent stage of the multi-stage connected media widens a spectrum width of the output light pulse.
2 Assignments
0 Petitions
Accused Products
Abstract
The pulse light source according to the present invention comprises: a seed pulse generator 1 for outputting an input pulse 10 as a seed pulse; a pulse amplifier 2; and a dispersion compensator 3 for dispersion compensating a light pulse output from the pulse amplifier 2. Moreover, the pulse amplifier 2 comprises a normal dispersion medium (DCF 4) and an amplification medium (EDF 5) that are multistage-connected alternately, for changing the input pulse 10 to a light pulse having a linear chirp and outputting the light pulse. Furthermore, an absolute value of the dispersion of the DCF 4 becomes to be larger than the absolute value of the dispersion of the EDF 5.
-
Citations
29 Claims
-
1. A pulse amplifier, comprising:
-
an amplification medium and a normal dispersion medium that are multistage-connected alternately, to change an input pulse to a light pulse having a linear chirp in a bandwidth range of wider than that for the input pulse and to output the light pulse, wherein the normal dispersion medium is a dispersion compensating medium and an absolute value of a dispersion of the normal dispersion medium is larger than an absolute value of a dispersion of the amplification medium, wherein each subsequent stage of the multi-stage connected media increases an intensity of the output light pulse, and wherein each subsequent stage of the multi-stage connected media widens a spectrum width of the output light pulse. - View Dependent Claims (2, 3, 4, 5, 6, 7, 21, 22, 23, 25)
-
-
8. A pulse light source, comprising:
-
a seed pulse generator for outputting a seed pulse; and a pulse amplifier comprising an amplification medium and a normal dispersion medium that are multistage-connected alternately, wherein the pulse amplifier changes an input pulse to a light pulse having a linear chirp in a bandwidth range of wider than that for the input pulse and outputs the light pulse, wherein the normal dispersion medium is a dispersion compensating medium and an absolute value of a dispersion of the normal dispersion medium is larger than an absolute value of a dispersion of the amplification medium, wherein each subsequent stage of the multi-stage connected media increases an intensity of the output light pulse, and wherein each subsequent stage of the multi-stage connected media widens a spectrum width of the output light pulse. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 24, 26, 27)
-
-
28. A pulse amplifier, comprising:
-
an amplification medium and a normal dispersion medium that are multistage-connected alternately, to change an input pulse to a light pulse having a linear chirp in a bandwidth range of wider than that for the input pulse and to output the light pulse, wherein the normal dispersion medium is a dispersion compensating medium and an absolute value of a dispersion of the normal dispersion medium is larger than an absolute value of a dispersion of the amplification medium, wherein the multistage-connected media include at least three in total of the amplification media and the normal dispersion media that are multistage-connected alternately, and wherein the multistage-connected media, which include at least three in total of the amplification media and the normal dispersion media, are arranged in a same package, a first isolator and a first wavelength divisional multiplex coupler are positioned at an input of the package, and a second isolator and a second wavelength divisional multiplex coupler are positioned at an output of the package.
-
-
29. A pulse light source, comprising:
-
a seed pulse generator for outputting a seed pulse; and a pulse amplifier comprising an amplification medium and a normal dispersion medium that are multistage-connected alternately, wherein the pulse amplifier changes an input pulse to a light pulse having a linear chirp in a bandwidth range of wider than that for the input pulse and outputs the light pulse, wherein the normal dispersion medium is a dispersion compensating medium and an absolute value of a dispersion of the normal dispersion medium is larger than an absolute value of a dispersion of the amplification medium, wherein the multistage-connected media include at least three in total of the amplification media and the normal dispersion media that are multistage-connected alternately, and wherein the multistage-connected media, which include at least three in total of the amplification media and the normal dispersion media, are arranged in a same package, a first isolator and a first wavelength divisional multiplex coupler are positioned at an input of the package, and a second isolator and a second wavelength divisional multiplex coupler are positioned at an output of the package.
-
Specification