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US 6,643,428 B2Granted
Optical fiber collimator and method for fabricating the same
AssigneeDelta Electronics, Inc.
InventorSean Chang
Life of this patent
Estimating the term…
Abstract
Disclosed is an optical fiber collimator including a single-mode fiber and a graded-index multi-mode fiber. The graded-index multi-mode fiber is spliced with the single-mode fiber and has a predetermined length so as to collimate light rays. The waveform of the light rays in the graded-index multi-mode fiber has a period P during the transmission and the length of the graded-index multi-mode is substantially 0.25×N×P, wherein N is a positive odd number.
Claims16
An optical fiber collimator comprising:
- a single-mode fiber for transmitting light rays;
- and
- a graded-index multi-mode fiber coupled with the single-mode fiber, for collimating the light rays;
- wherein the light rays are substantially parallel after passing through the graded-index multi-mode fiber.
1 more element
A method for fabricating an optical fiber collimator comprising the steps of:
- coupling a graded-index multi-mode optical fiber with a single-mode optical fiber;
- and
- detecting light rays passing through the graded-index multi-mode optical fiber and the single-mode optical fiber with a light detector, and adjusting the graded-index multi-mode optical fiber such that the graded-index multi-mode optical fiber collimates the light rays passing therethrough to be substantially parallel.
An optical fiber collimator comprising:
- a single-mode fiber for transmitting light rays;
- and
- a graded-index multi-mode fiber coupled with the single-mode fiber for collimating the light rays,
- wherein the light rays transmitted in the graded-index multi-mode fiber has a waveform with a period P, and the length of the graded-index multi-mode fiber is substantially 0.25×N×P, wherein N is a positive odd number.
1 more element
Dependencies are inferred from the claim text.