A device and method for angle measurement of fiber array or chip
A technology of optical fiber array and chip, which is applied in the field of optical fiber array or chip measurement, can solve problems such as insufficient resources and performance bottlenecks of optical splitters, and achieve the effects of simple operation, high accuracy, and improved use efficiency
Active Publication Date: 2015-08-12
JIANGSU HENGTONG PHOTOELECTRIC +1
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Problems solved by technology
[0003] In the specific process of planar optical waveguide PLC production, the grinding of the fiber array FA (fiber array) or chip (chip) directly determines the performance of the optical splitter. Currently, due to the fiber array FA (fiber array) or chip ( chip) mass production, there is a dilemma of insufficient resources to test the angle of each device produced. Although after years of exploration, the problem of angle testing of fiber array FA (fiber array) or chip (chip) has always been the problem of optical branching. performance bottleneck
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[0029] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0030] The present invention can provide a part of the principle of the Michelson interferometer, an optical device originally used in experiments such as Fresnel diffraction and wavelength division multiplexing, and apply it to the angle measurement of precision instruments, thereby changing the need to spot check the measurement fiber in the past In the way of array FA (fiber array) or chip (chip) angle, only need to reserve the portable red light surface angle measuring instrument, and can quickly respond to the large-scale production mode of angle measurement. The fiber array FA or chip is an optical device with a micro-angled end face.
[0031] In a specific embodiment, when the red light emitted by a beam of LED light source is incident on the surface of the fiber array FA or the chip with a certain inclination angle in a direction parallel to the horizontal di...
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The invention provides a device and a method for angular measurement of a fiber array or a chip. The device for angular measurement of the fiber array or the chip comprises a three-dimensional retroreflector adjustment system, a four-dimensional light-emitted diode (LED) light source adjustment system and a screen table. After a retroflector is adjusted by the three-dimensional retroreflector adjustment system in three directions, positions of a cargo platform and the to-be-measured object, namely the fiber array (FA) or the chip can be confirmed, the light emitted from the light source system forms a light spot after being reflected by the retroflector perpendicular to the horizontal plane, an LED light source system is adjusted by the LED light source adjustment system in four directions to enable the light spot to enter into a light source hole, angle of the FA or the chip which corresponds to each light spot position is pre-computed and is marked on the screen table, when the LED light source system is a point light source, light spot position on the screen table is coincide with the position of the pre-marked light spot, and the corresponding angle can be computed.
Description
technical field [0001] The invention relates to the technical field of optical fiber array or chip measurement, in particular to a device and method for measuring the angle of an optical fiber array or chip. Background technique [0002] The planar optical waveguide PLC optical splitter is the key component of the FTTX network. The FTTX network is a communication operator's response to fierce market competition, getting rid of the bandwidth bottleneck of copper cable access technology, and realizing fiber-to-floor and residential buildings in urbanized areas. The entrance of optical fiber in the community is a "three-network integration" broadband optical network that meets the requirements of multi-service and high-bandwidth bearing. [0003] In the specific process of planar optical waveguide PLC production, the grinding of the fiber array FA (fiber array) or chip (chip) directly determines the performance of the optical splitter. Currently, due to the fiber array FA (fibe...
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IPC IPC(8): G01M11/00
Inventor 钱建林徐虎周庆红孙权赵关宝陈立坚
Owner JIANGSU HENGTONG PHOTOELECTRIC