Ferrule product, method of making the same, and optical module
AssigneeSumitomo Electric Industries, Ltd.
InventorsJun-ichi Hashimoto, Takashi Kato, Manabu Shiozaki, Naoki Karikomi
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Abstract
A ferrule product 30b is utilized in an optical module 5 comprising a semiconductor optical amplifier 55 having a pair of end facets. The ferrule product 30b comprises an optical fiber 51 and a ferrule 52. The optical fiber 51 has one end part, optically coupled with one of the pair of end facets, a first part including a grating 511 disposed at a predetermined position separated from one end part, and a second part different from the first part. The ferrule 52 has a capillary part 521 for holding the optical fiber 51 and a flange part 522 for holding the capillary part. The flange part 522 is disposed on the second part.
Claims22
A ferrule product for use in an optical module comprising a semiconductor optical amplifier having a pair of end facets, said ferrule product comprising:
- an optical fiber having one end part provided so as to be optically coupled with one of said pair of end facets, a first optical fiber portion including a fiber Bragg grating provided at a predetermined position distanced from said one end portion, and a second optical fiber portion different from said first optical fiber part;
- and
- a ferrule having a capillary portion for holding said optical fiber and a flange portion for holding said capillary portion;
- wherein said flange portion is provided on said second optical fiber portion.
A ferrule product for use in an optical module comprising a semiconductor optical amplifier having a pair of end facets, said ferrule product comprising:
- an optical fiber having one end portion provided so as to be optically coupled with one of said pair of end facets, and a fiber Bragg grating provided at a predetermined position distanced from said one end portion;
- and
- a ferrule having a capillary portion for holding said optical fiber and a flange portion for holding said capillary portion;
- wherein a material of said capillary portion has a negative coefficient of linear expansion, whereas material of said flange portion has a positive coefficient of linear expansion.
A ferrule product for use in an optical module comprising a semiconductor optical amplifier having a pair of end facets, said ferrule product comprising:
- an optical fiber having one end portion provided so as to be optically coupled with one of said pair of end facets, and a grating provided at a predetermined position distanced from said one end portion;
- and
- a ferrule having a capillary portion for holding said optical fiber and a flange portion for holding said capillary portion,
- wherein material forming said flange portion has a coefficient of linear expansion smaller than that of stainless steel.
Dependencies are inferred from the claim text.