40g or 100g optical component transmission based on wavelength division multiplexing technology

Abstract

The invention discloses a 40 G or 100 G optical assembly emitting end based on the wavelength division multiplexing technology. The optical assembly emitting end comprises a light receiving unit and a light emitting unit, and the light emitting unit comprises four laser emitting mechanisms with the rate of 10 G or 25 G. Output light of the laser emitting mechanisms is guided through the light-in side of the light receiving unit by means of two film filters in a transmission and / or reflection mode or a reflection and / or transmission mode, so that the light receiving unit and the light emitting unit form a light transmission scheme of the 40 G or 100 G optical assembly emitting end in space. By means of the 40 G or 100 G optical assembly emitting end based on the wavelength division multiplexing technology, each laser light-emitting diode can pass through the two wavelength division filters in the optical conduction process, then, the light loss of coupled light is made average, the flatness of input light of the light receiving unit is high, and it is guaranteed that performance parameters meet the same requirements of technologies adopting planer optical waveguides, gold wire bonding and the like.

Description

technical field [0001] The invention relates to a receiving end scheme in a 40G / 100G optical component used in optical communication. More specifically, the present invention relates to a 40G or 100G optical component transmission based on wavelength division multiplexing technology in the case of optical communication. Background technique [0002] With the advent of the Internet + era, data processing and transmission have been rapidly discovered, the rapid growth of e-commerce, massive video services, etc. all indicate that the data exchange industry is developing towards higher transmission rates. 40G and 100G optical modules The market demand is also becoming more and more urgent. However, as the core component of the optical module, the optical transceiver component is hindering the further promotion and application of 40G and 100G optical modules due to its superb technology and complex process. [0003] At present, 40G and 100G optical transceiver components on the...

AI Technical Summary

Problems solved by technology

[0005] First, this patented technology integrates the functions of the receiving end and the sending end. When the receiving end is used in practice, because the degree of each standard thin-film filter is fixed, it is set to 45 degrees. Therefore, when performing the light receiving operation, because The difference in the polarization direction of the light will directly affect the sensitivity of the receiving end, that is, the responsivity of the photodiode, and then affect the performance parameters of the optical component;

[0006] The second is that the patented technology integrates the functions of the receiving end and the sending end, and the sending end can be obtained from the attached figure 1 It can be seen that when the four laser emitting mechanisms emit corresponding optical signals, when the light is transmitted to the light-receiving side, some laser emitting mechanisms directly reach the light-incoming side through a standard thin-film filter, and some laser emitting mechanisms pass through two The standard thin-film filter reaches its light-incident side, and some laser emitting mechanisms have to pass through three standard thin-film filters to reach its light-incident side, which makes the output light of each laser emitting mechanism pass through different numbers of standard filters. , so that the light loss is different. For example, the light loss of the output light passing through only one standard filter may only be 0.1-0.5db, while the light loss of the output light passing through three standard filters will reach 1.5db, or even more High, resulting in a large power deviation between different channels due to different optical paths, and then the flatness of the four output light beams coupled to the light incident side is greatly reduced, further affecting the performance parameters of the optical components, making it impossible Meet the same requirements of using planar optical waveguide and gold wire bonding technology

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