Optical coupling module construction

Abstract

The invention discloses an optical coupling module structure, comprising a substrate, an optical coupling lens group, a laser transmitting assembly and a light receiving assembly. A first platform and a second platform are arranged on the upper surface of the substrate; the optical coupling lens is arranged between the first platform and the second platform; a light emitting surface of the laser emitting assembly and a light receiving surface of the light receiving assembly are respectively electrically connected with the first platform and the second platform, which are fixedly arranged at the both ends of the substrate downwards; and the first platform and the second platform respectively have a pre-set height, so that light can be ensured to emit and receive on the same height level. The optical coupling module structure provided by the invention has a small entire error in a (height) direction of a Z axis, and has the beneficial effects of improving optical coupling precision in the direction of the Z axis and a yield of a finished product.

Description

technical field [0001] The invention relates to an optical coupling module structure, in particular to an optical coupling module structure capable of improving optical coupling precision in the Z-axis direction. Background technique [0002] Early telecommunication transmissions (such as networks) were transmitted by radio signals. However, radio signals are prone to attenuation and interference during transmission, and there are also problems such as numerous contacts and easy disconnection. In recent years, due to the development of optical fiber technology and the advantages of anti-interference and attenuation of light wave signals, the transmission of light wave signals instead of electrical signals has become the driving force of signal transmission. [0003] Furthermore, in traditional semiconductors, electrical signals are mostly used to operate. However, due to the above-mentioned inherent advantages of light wave signals compared with electrical signals, in the fi...

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Problems solved by technology

[0006] Therefore, based on the cumulative error of the above numerous variables, the accuracy of the height (Z-axis direction) of the downward emitting point of the laser emitting component and the upward receiving point of the light receiving component is prone to deviation.

When the deviation is less than the error range, the light from the emitting point can be aligned to the receiving point by fine-tuning the position of the optical coupling lens; however, when the deviation is greater than the error range, the substrate The optical coupling components (the laser emitting component and the light receiving component) on the optical coupling module cannot operate normally, resulting in the functional failure of the optical coupling module, and must be scrapped or complicated rework (rework)

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