Process of tuning a grated optical fiber and the tuned optical fiber
First Claim
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1. A process of sealing and tuning a grated optical fiber capable of reflecting a particular wavelength or wavelengths of light, said process comprising:
- (a) encasing the portion of an optical fiber containing a grating within a tube formed from two semi-tubular sections;
(b) sealing the tube to an inner sheath of the optical fiber at one end of the grating;
(c) sealing the semi-tubular sections along their longitudinal seams;
(d) injecting light of a predetermined wavelength into an end of said optical fiber, said predetermined wavelength being greater than the wavelength of reflectance of the grating;
(e) stretching the optical fiber until reflectance occurs at the grating at the predetermined wavelength; and
(f) sealing the other end of the tube to the inner sheath of the optical fiber so as to form a seal around the grating.
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Abstract
A tuned optical fiber grating and a tuning process is disclosed. The gratings on the optical fiber ar tuned so that the reflectance of the grating can occur at a specific wavelength. The process involves encasing that portion of the fiber containing the grating while shining light of the wavelength of desired reflectance through the fiber and stretching the grating until reflectance occurs. Thereafter, the tuned grating is sealed within a tube formed around the tuned grating.
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Citations
19 Claims
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1. A process of sealing and tuning a grated optical fiber capable of reflecting a particular wavelength or wavelengths of light, said process comprising:
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(a) encasing the portion of an optical fiber containing a grating within a tube formed from two semi-tubular sections; (b) sealing the tube to an inner sheath of the optical fiber at one end of the grating; (c) sealing the semi-tubular sections along their longitudinal seams; (d) injecting light of a predetermined wavelength into an end of said optical fiber, said predetermined wavelength being greater than the wavelength of reflectance of the grating; (e) stretching the optical fiber until reflectance occurs at the grating at the predetermined wavelength; and (f) sealing the other end of the tube to the inner sheath of the optical fiber so as to form a seal around the grating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A process of sealing and tuning a grated optical fiber comprising:
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(a) placing the grated portion of an optical fiber into a semi-tubular section, wherein the grated portion of the optical fiber is capable of reflecting light at a particular wavelength; (b) injecting light of a predetermined wavelength into an end of the optical fiber, said predetermined wavelength being greater than the particular wavelength of reflectance of the grated portion of the optical fiber; (c) stretching the grated portion of the optical fiber until reflectance occurs at the grated portion at the predetermined wavelength; (d) sealing the semi-tubular section to the portions of an inner sheath of the optical fiber on opposite ends of the grated portion of the optical fiber; and (e) forming a tube around the tuned grated portion with a second semi-tubular section. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A tuned optical fiber having at least one grating capable of reflecting a specified wavelength of light comprising:
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an optical fiber containing at least one grating; and a tube fabricated from two semi-tubular sections around said grating and sealed to an inner sheath of the optical fiber on opposite ends of said grating, wherein said gratings are under a positive tension to reflect light at a predetermined wavelength which is greater than the wavelength of reflectance of the grating initially formed when not under a positive tension. - View Dependent Claims (19)
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Specification