Integrated optical system-based optical detection device
AssigneeOptonics Co., Ltd.
InventorsSeong-Min Ju, Young-Woo Lee
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Abstract
Provided is an optical detection device for sensing environmental changes inside and outside a fiber optic sensor probe by detecting polarization and optical power differences between a plurality of input signals, the optical detection device being characterized by comprising: a plurality of optical fiber pigtail blocks internally accommodated with a portion of the optical fibers; an integrated optical system composed of a plurality of optical components optically bonded to the optical fiber pigtail blocks at interfaces with the bulk optical components; and a balanced optical detection component for comparing components of a plurality of polarized lights received from the integrated optical system.
Claims8
An integrated optical system-based optical detection device for sensing environmental changes inside and outside of a fiber optic sensor probe by detecting polarization and optical power differences between a plurality of input signals, comprising:
- a plurality of optical fiber pigtail blocks internally accommodated with a portion of optical fibers;
- an integrated optical system composed of a plurality of optical components optically bonded to the pig-tailed optical fiber blocks at interfaces with the pig-tailed optical fiber blocks;
- and
- a balanced optical detection component for comparing components of a plurality of polarized lights received from the integrated optical system,
- wherein the pig-tailed optical fiber blocks are made of low thermal expansion glass material, the blocks facing each other, each of the blocks provided with V-shaped or U-shaped machined grooves where the optical fibers are seated.
An integrated optical system-based optical detection device for sensing environmental changes inside and outside of a fiber optic sensor probe by detecting polarization and optical power differences between a plurality of input signals, comprising:
- a plurality of optical fiber pigtail blocks internally accommodated with a portion of optical fibers;
- an integrated optical system composed of a plurality of optical components optically bonded to the pig-tailed optical fiber blocks at interfaces with the pig-tailed optical fiber blocks;
- and
- a balanced optical detection component for comparing components of a plurality of polarized lights received from the integrated optical system,
- wherein the integrated optical system comprises:
- a 45-degree rotator that rotates the light source of input signal 1 by 45 degrees, a beam splitter that divides input signals 1 and 2 into a 50:50 ratio, and a plurality of polarization splitters that separate the polarized lights of these signals, wherein the beam splitter serving as division into and intersection with input signals 1 and 2 are divided by and intersected with each other through the beam splitter.
Dependencies are inferred from the claim text.