Packaging method capable of carrying out super miniaturization on fiber-coupled acousto-optic device collimator

An optical fiber coupling, acousto-optic device technology, applied in the coupling of optical waveguides, optics, instruments, etc., can solve the problems of inability to meet the thermal stability requirements of the device, unfavorable device miniaturization, high angle sensitivity, and save the use of raw materials. , volume reduction, the effect of meeting performance requirements

Inactive Publication Date: 2019-12-27
SHANGHAI QINGJIN PHOTOELECTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the coupling of the acousto-optic device is different from that of the traditional light source device, the entire optical path is angled, and it is an active optical device with a certain temperature. Place the base of the acousto-optic crystal and the collimator on the same plane In general, the conduction of temperature will cause the base of the collimator to be slightly deformed, and the entire optical path is angled, and the sensitivity to angles is very high. After coupling and packaging, with the prolongation of use time, there will be slight jumps. Unable to meet the thermal stability requirements of the entire device when the ambient temperature changes
In addition, since the collimator must be placed on the crystal base, the size of the entire device is relatively large, which is not conducive to the trend of device miniaturization

Method used

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  • Packaging method capable of carrying out super miniaturization on fiber-coupled acousto-optic device collimator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] Embodiment 1 provides a method for packaging an ultra-miniaturized fiber-coupled acousto-optic device collimator, comprising the following steps:

[0091] 1) A hole is respectively opened on the side wall of the casing containing the acousto-optic crystal, wherein the angle between the hole and the outer side wall is 24 milliradians, the thickness of the side wall is 4mm, and the aperture is 3mm;

[0092] 2) Pass two glass tubes with an outer diameter of 2.8 mm through the holes described in step 1) respectively, and apply single-component polyurethane glue on the outer walls of the glass tubes in contact with the holes to fix the glass tubes;

[0093] 3) Place two identical optical fiber collimators designed to be clamped by the six-dimensional adjustment frame into the glass tubes on both sides, adjust the position and direction of the collimators, and after all are fixed, loosen the six-dimensional adjustment frame. The collimator clamp, remove the adjustment frame; ...

Embodiment 2

[0101] Embodiment 2 provides a method for packaging an ultra-miniaturized fiber-coupled acousto-optic device collimator, comprising the following steps:

[0102] 1) A hole is respectively opened on the side wall of the casing containing the acousto-optic crystal, wherein the angle between the hole and the outer side wall is 24 milliradians, the thickness of the side wall is 3mm, and the aperture is 2.5mm;

[0103] 2) Pass two glass tubes with an outer diameter of 1.8 mm through the holes described in step 1) respectively, and apply single-component polyurethane glue on the outer walls of the glass tubes in contact with the holes to fix the glass tubes;

[0104] 3) Place two identical optical fiber collimators designed to be clamped by the six-dimensional adjustment frame into the glass tubes on both sides, adjust the position and direction of the collimators, and after all are fixed, loosen the six-dimensional adjustment frame. The collimator clamp, remove the adjustment frame...

Embodiment 3

[0112] Embodiment 3 provides a method for packaging an ultra-miniaturized fiber-coupled acousto-optic device collimator, comprising the following steps:

[0113] 1) A hole is respectively opened on the side wall of the casing containing the acousto-optic crystal, wherein the angle between the hole and the outer side wall is 24 milliradians, the thickness of the side wall is 5mm, and the aperture is 3.5mm;

[0114] 2) Pass two glass tubes with an outer diameter of 3.5 mm through the holes described in step 1) respectively, and apply single-component polyurethane glue on the outer walls of the glass tubes in contact with the holes to fix the glass tubes;

[0115] 3) Place two identical optical fiber collimators designed to be clamped by the six-dimensional adjustment frame into the glass tubes on both sides, adjust the position and direction of the collimators, and after all are fixed, loosen the six-dimensional adjustment frame. The collimator clamp, remove the adjustment frame...

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Abstract

The invention relates to the technique of fiber communication and specifically relates to a packaging method capable of carrying out super miniaturization on a fiber-coupled acousto-optic device collimator. According to the packaging method capable of carrying out the super miniaturization on the fiber-coupled acousto-optic device collimator provided by the invention, the collimator is directly placed on a side wall of an outer shell in which an acousto-optic crystal is mounted, so the inherent problem that in the prior art, a size of a fiber-coupled acousto-optic device is relatively large issolved. The device is developed towards a super miniaturization direction. Use of raw materials is greatly reduced. Resources are saved. The size is greatly reduced, so the device is relatively convenient for carrying and use. A use requirement of people for the modern fiber-coupled acousto-optic device can be satisfied. Heat stability of the whole device when an environment temperature is changed is improved. Even if the device works in a range with relatively high temperature difference (30 degrees centigrade under zero to 70 degrees centigrade), the fiber-coupled acousto-optic device stillcan keep good stability. A performance requirement of the modern fiber communication technique for a processing device is satisfied.

Description

technical field [0001] The invention relates to the technical field of optical fiber communication, in particular to a packaging method for a collimator capable of ultra-miniaturizing an optical fiber coupled acousto-optic device. Background technique [0002] Optical fiber communication technology has become a very important part of modern communication technology. The optical fiber communication system is constantly developing towards the trend of large capacity and high speed. While developing at a high speed, it also puts forward higher requirements for various optical signal processing devices in the system. . The fiber-coupled acousto-optic device is one of the main components, which is equivalent to a high-speed optical switch for controlling the pulsed laser output. [0003] Fiber collimator is an indispensable basic component in fiber-coupled acousto-optic devices, which plays the role of beam collimation and beam expansion. The coupling method of the traditional ...

Claims

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Application Information

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IPC IPC(8): G02F1/125G02B6/32
CPCG02B6/32G02F1/125
Inventor 钟能能
Owner SHANGHAI QINGJIN PHOTOELECTRON TECH CO LTD
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