Method and apparatus for wavelength switching of a laser source
First Claim
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1. Apparatus for wavelength switching a laser source comprising:
- a space division switch including a plurality of optical fibers, each having a different Bragg grating;
an external cavity coupleable with one optical fiber of said plurality of optical fibers, said space division switch being switchable for coupling a currently selected one of the plurality of optical fibers with said external cavity, said external cavity producing a different output wavelength with each of the plurality of optical fibers;
an amplifying medium having a front face and a rear face, the rear face co-operating with the Bragg grating of the currently selected one of the plurality of optical fibers to define the external cavity; and
an intermediate optical fiber between the front face of the amplifying medium and said space division switch to couple the amplifying medium to the currently selected one of the plurality of optical fibers carrying the Bragg grating.
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Abstract
A method and apparatus for wavelength switching a laser source. An external cavity (2) having a Bragg grating (5) is provided in an optical fiber (4). Space division switching is performed in the external cavity between a plurality of optical fibers (4) each having a different Bragg grating (5). A space division switch (3) is provided in the external cavity for switching between a plurality of optical fibers (4) each carrying a different Bragg grating (5).
7 Citations
19 Claims
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1. Apparatus for wavelength switching a laser source comprising:
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a space division switch including a plurality of optical fibers, each having a different Bragg grating;
an external cavity coupleable with one optical fiber of said plurality of optical fibers, said space division switch being switchable for coupling a currently selected one of the plurality of optical fibers with said external cavity, said external cavity producing a different output wavelength with each of the plurality of optical fibers;
an amplifying medium having a front face and a rear face, the rear face co-operating with the Bragg grating of the currently selected one of the plurality of optical fibers to define the external cavity; and
an intermediate optical fiber between the front face of the amplifying medium and said space division switch to couple the amplifying medium to the currently selected one of the plurality of optical fibers carrying the Bragg grating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification