JPS61130907A - Assembling device for optical transmitting and receiving module - Google Patents

Abstract

PURPOSE:To make possible the production of a large quantity without adjustment by disposing respective elements by using holding means in such a manner that the light emitting and photodetecting positions of light emitting elements and photodetectors coincide with the input and output ports of an optical multiplexer and demultiplexer. CONSTITUTION:The example of an optical transmitting and receiving module provided with the light emitting elements 1, 2 having wavelengths lambda1, lambda2, the photodetectors 3, 4 having the max. sensitivity at wavelengths lambda3, lambda4 and the optical multiplexer and demultiplexer 5 is shown. The positions are classified and segmented together with production at each DELTAx by examining atuomatically the positions of the respective elements if there is the fre quency distribution of the variance between the light emitting positions and photodetecting positions of the respective elements 1-4. The positions are classified to, for example, No. 1-No. n and n-kinds of holding bases 6 for holding the elements are prepd. The holding bases of which the mechanical accuracy is obtd. for each of the classifications are prepd. The assembly of the light module is executed by segmenting the emitting elements 1, 2 and the photodetectors 3, 4 by n by an automatic position classifying device 9, preparing automatic assembling devices 10 for each of the segments, preparing the holding bases suitable for the respective segments to the respective automatic assembling devices, assembling devices, assembling automatically the respective elements to the holding bases and transferring the same to the succeeding stage.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention aims at eliminating the need for adjustment when a light emitting element or a light receiving element is integrated with an optical multiplexer/demultiplexer; Ninth, the present invention relates to an assembly device suitable for mass production of integrated optical transmitting and transmitting modules without requiring highly accurate light emitting and receiving positions.

[Background of the invention]

The conventional optical transceiver module is published in the Journal of the Institute of Electronics and Communication Engineers Vol. 1.6.
3. As described in 1980-11, P1173 to P1191, each of the light emitting element module, light receiving element module, optical multiplexer/demultiplexer, etc. is individually configured. There are many models, and there are many parts that make up the module.
◇In order to improve this, which is a cause of high costs, an integrated optical transceiver module can be considered to reduce the number of parts as much as possible.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide an optical transmission module assembly system that allows highly efficient coupling between an optical element and an optical demultiplexer/multiplexer without any adjustment, and that can be produced in large quantities.

[Summary of the invention]

The light emitting and light receiving positions of the light emitting elements and light receiving elements vary from element to element, so in order to improve coupling with the optical demultiplexer/multiplexer, it is necessary to adjust them according to the variations, which requires a large amount of adjustment time. It takes a lot of time and requires a highly precise adjustment jig. In order to avoid this, the present invention aims to know the light emitting and light receiving positions of the light emitting elements and light receiving elements in advance, classifying them for each position, preparing in advance a holding stand suitable for each position, and mechanically coupling them together. It is.

[Embodiments of the invention]

FIG. 1 shows a light emitting element 1 having a wavelength of λ1, a light emitting element 2 having a wavelength of λ2, and a light emitting element 2 having a wavelength of λ2. A light-receiving element 3 with maximum wavelength sensitivity of λ3. 4 and 1 with maximum wavelength sensitivity at λ4
An example of the configuration of an optical transmitter/receiver module consisting of two optical demultiplexers/multiplexers 5 is shown.

In order for these optical elements to be optimally optically coupled to the common terminal 8 of the optical demultiplexer/multiplexer, the light emitting and light receiving positions of the optical elements must be arranged within a range allowed by coupling loss, for example ΔX7. Light emitting element 1゜2 and light receiving elements 3, 4. Optical demultiplexer/multiplexer 5
It is possible to optimize the positional relationship between the two by adjustment, but the number of adjustment points is required to be at least three or more for one element. This is because there are variations in position accuracy in the light emitting and light receiving positions of the light emitting element 1.2 and the light receiving element 3.4.

Therefore, for example, when there is a frequency distribution of variations in the light emitting position and light receiving position of each element as shown in Figure 2, the position is
For each X, the light emitting and light receiving positions of each element are automatically checked and classified as they are manufactured. For example, it is classified into shoulders 1 to /1I-n as shown in FIG. Furthermore, a holding table 6 for holding each element is prepared. N types of this holding stand are prepared,
Prepare a mechanically accurate version for each classification.

FIG. 5 shows an example of an optical module assembly process. The light-emitting elements and light-receiving elements (1 to 4) are divided into n categories by an automatic position sorting device 9, an automatic assembly device 10 is prepared for each division, and a holding stand suitable for each division is prepared in each automatic assembly device. , each element is automatically assembled into the holding table and moved to the next process.

〔Effect of the invention〕

According to the present invention, it is possible to manufacture a light emitting element or a light receiving element in large quantities without any adjustment, without changing the conventional method of manufacturing the light emitting element or the light receiving element, and without lowering the yield of each element, which is economically superior.

[Brief explanation of drawings]

Each figure shows an embodiment of the present invention. Figure 1 is a configuration diagram of an optical transceiver module, Figure 2 is a frequency distribution diagram of the light emitting and light receiving positions of the optical element, and Figure 3 is a diagram of the optical transmitter and receiver module. FIG. 2 is a configuration diagram of an automatic assembly device. 1... Light emitting element 2... Light emitting element 5... Light receiving element 4... Light receiving element 5... Light demultiplexer/multiplexer 6... Holding table 7... Position accuracy 8... Light Fiber 9...
Automatic position classification device 10...Automatic installation device is also t(2) Fig.

Claims (1)

[Scope of Claims] 1. An optical transceiver module in which one or more light emitting elements and one or more light receiving elements are arranged at each input/output port of an optical demultiplexer/multiplexer. An optical transceiver module assembly apparatus characterized in that each element is arranged using a holding means so that the position and light receiving position match the input/output port of an optical demultiplexer/multiplexer. 2. Using a device that automatically checks the light-emitting and light-receiving positions of light-emitting elements and light-receiving elements that have one or more types of light-emitting and light-receiving positions, the light-emitting and light-receiving elements are automatically placed at predetermined light-emitting and light-receiving positions. The optical transmitting/receiving module assembly apparatus according to claim 1, wherein the optical transmitting/receiving module assembling apparatus according to claim 1 is characterized in that the divided elements are automatically placed on a predetermined holding table.