Wavelength locker comprising a diamond etalon
AssigneeBookham Technology PLC
InventorsHerman Godfreid, Evert Houwman, James Fraser, Stephen Pope, Kevin Mullaney
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Abstract
A wavelength locker for locking the wavelength of a light beam substantially to a predetermined wavelength comprises at east one Fabry-Perot etalon arranged to receive a sample portion of the light beam and to produce at least one output light beam therefrom, the intensity of which is dependent upon the wavelength of the sample light beam, the Fabry-Perot etalon comprising diamond. Preferably the diamond etalon is a single crystal synthetic diamond having highly polished input and output faces without any reflective coatings.
Claims28
A wavelength locker for locking the wavelength of a light beam substantially to a predetermined wavelength, the wavelength locker comprising at least one Fabry-Perot etalon arranged to receive a sample portion of the light beam and to produce at least one output light beam therefrom, the intensity of which is dependent upon the wavelength of the sample light beam, wherein the Fabry-Perot etalon comprises diamond.
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A wavelength drift detector for detecting the drift of the wavelength of a light beam from a predetermined wavelength, the wavelength drift detector comprising at least one Fabry-Perot etalon arranged to receive a sample portion of the light beam to produce at least one output light beam therefrom, the intensity of which is dependent upon the wavelength of the sample light beam, wherein the Fabry-Perot etalon comprises diamond.
Dependencies are inferred from the claim text.