Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for continuous production of glass-based ion-exchange surface optical waveguide chips

A technology of ion exchange and optical waveguide, applied in the direction of light guide, optics, optical components, etc., can solve the problems of inconsistency in optical properties, limited capacity, unfavorable pass rate and other problems of increasing ion exchange optical waveguide, so as to reduce investment in fixed assets, Increased productivity and improved consistency

Inactive Publication Date: 2020-10-09
ZHEJIANG UNIV
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the existing ion exchange method, that is, performing ion exchange in a box-type high-temperature furnace, there are many problems in the mass production of optical waveguide chips
[0005] First, the capacity of the general box-type high-temperature furnace is limited. Considering the temperature inhomogeneity inside the chamber of the box-type high-temperature furnace, the number of glass substrates that the high-temperature furnace can accommodate is affected, which limits the production efficiency and makes the Increased average energy consumption for chip production
[0006] Second, large-scale production requires many box-type high-temperature furnaces to work at the same time. The temperature differences between high-temperature furnaces, as well as the differences in operating speed and operating habits of operators increase the inconsistency of the optical properties of ion-exchanged optical waveguides. Conducive to the improvement of pass rate
[0007] Third, multiple box-type high-temperature furnaces require more investment in fixed assets and occupy more land resources
[0008] Therefore, the existing ion exchange technology based on box-type high-temperature furnace is not suitable for large-scale and batch production of glass-based optical waveguide chips.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for continuous production of glass-based ion-exchange surface optical waveguide chips
  • A method for continuous production of glass-based ion-exchange surface optical waveguide chips

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: with K + / Na + Fabrication of single-mode optical waveguides by ion exchange

[0027] Required preparations:

[0028] A tunnel type high-temperature furnace (8) with a length of 6 meters, a conveyor belt (10) and a driving mechanism (9). Wherein the driving mechanism (9) can carry out stepless transmission work.

[0029] Molten salt with dopant ions (2), here KNO 3 molten salt.

[0030] A silicate glass substrate (4) with a mask (5) of a hollow structure fabricated on the surface.

[0031] Prepare 70 crucibles (3) and 70 supports (6).

[0032] The main steps are as follows:

[0033] (A) Tunnel type high-temperature furnace (8) is heated up to 350 ℃, and keeps warm. Adjust the rotating speed of the drive mechanism (9) so that the transmission speed of the conveyor belt (10) is 0.25mm / s.

[0034] (B) placing the support (6) in the crucible (3), and placing the glass substrate (4) on the support (6) in the crucible (3);

[0035] (C) injecting molten...

Embodiment 2

[0039] Embodiment 2: with K + / Na + Fabrication of Multimode Optical Waveguides by Ion Exchange

[0040] Required preparations:

[0041] A tunnel type high-temperature furnace (8) with a length of 6 meters, a conveyor belt (10), and a driving mechanism (9). Wherein the driving mechanism (9) can carry out stepless transmission work.

[0042] Molten salt with dopant ions (2), here KNO 3 molten salt.

[0043] A silicate glass substrate (4) with a mask (5) of a hollow structure fabricated on the surface.

[0044] Prepare 70 crucibles (3) and 70 supports (6).

[0045] The main steps are as follows:

[0046] (A) Tunnel type high-temperature furnace (8) heats up to 400 ℃, and keep warm. Adjust the rotating speed of the driving mechanism (9) so that the transmission speed of the conveyor belt (10) is 0.20mm / s.

[0047] (B) placing the support (6) in the crucible (3), and placing the glass substrate (4) on the support (6) in the crucible (3);

[0048](C) injecting molten salt...

Embodiment 3

[0052] Embodiment 3: with Ag + / Na + Fabrication of single-mode optical waveguides by ion exchange

[0053] Required preparations:

[0054] A tunnel type high-temperature furnace (8) with a length of 6 meters, a conveyor belt (10), and a driving mechanism (9). Wherein the driving mechanism (9) can carry out stepless speed change.

[0055] Molten salt (2) with dopant ions, here AgNO 3 with NaNO 3 A mixed molten salt in which AgNO 3 The content of 1mol%.

[0056] A silicate glass substrate (4) with a mask (5) of a hollow structure fabricated on the surface.

[0057] Prepare 50 crucibles (3) and 50 supports (6).

[0058] The main steps are as follows:

[0059] (A) Tunnel type high-temperature furnace (8) is heated up to 330 ℃, and keeps warm. Adjust the rotating speed of the driving mechanism (9) so that the transmission speed of the conveyor belt (10) is 0.50mm / s.

[0060] (B) placing the support (6) in the crucible (3), and placing the glass substrate (4) on the supp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for continuously producing a glass-based ion exchange surface optical waveguide chip. A tunnel type high-temperature furnace is placed, furnace openings are formed inthe two ends of the tunnel type high-temperature furnace to serve as an inlet end and an outlet end correspondingly, and a horizontal conveying belt is arranged between the inlet end and the outlet end of the tunnel type high-temperature furnace. A crucible is placed on the conveying belt and conveyed along the conveying belt, conveying wheels of the conveying belt are connected with a driving structure, and under the action of the driving structure of the conveying belt, the conveying belt conveys the crucible into the tunnel type high-temperature furnace from the inlet end of the tunnel typehigh-temperature furnace, and the crucible is conveyed to the outlet end of the tunnel type high-temperature furnace after high-temperature ion exchange reaction. According to the invention, the consistency of the optical waveguide chips is improved, and the percent of pass can be improved more easily; the complexity and the cost for designing and optimizing the production process parameters of the glass-based ion exchange surface optical waveguide chip are reduced; and the production efficiency of the optical waveguide chip is improved, and the energy consumption is reduced.

Description

technical field [0001] The invention relates to the fields of optical devices and integrated optics, in particular to a method for continuous production of glass-based ion-exchanged surface optical waveguide chips. Background technique [0002] In 1969, S.E.Miller proposed the concept of integrated optics. The basic idea is to make optical waveguides on the surface of the same substrate (or substrate), and based on this, realize the integration of various devices such as light sources, couplers, and filters. Integrated production. Through this integration, the miniaturization, weight reduction, and stabilization of the optical system can be realized, and the performance of the device can be improved. [0003] The integrated optical devices fabricated on glass substrates by ion exchange method have always been valued by business circles and researchers. Glass-based integrated optical waveguide devices based on ion exchange technology have some excellent properties, includin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/134
CPCG02B6/1345
Inventor 郝寅雷蒋建光邓鑫宸牛梦华车录锋余辉李宇波杨建义
Owner ZHEJIANG UNIV