Unilateral array type WDM structure based on micro lenses

Abstract

The invention discloses a unilateral array type WDM structure based on micro lenses. The unilateral array type WDM structure based on the micro lens comprises an optical fiber array and a micro lens array, and the optical fiber array is arranged opposite to one side, provided with filters, of a glass-based base; the optical fiber array is formed by uniformly arranging a plurality of single fibers;the micro lens array is composed of the glass-based base, micro lenses and filters, and the micro lenses and the filters are arranged on the two sides of the glass-based base respectively. Accordingto the unilateral array type WDM structure based on the micro lenses, multiple times of beam focusing are integrated into one time of beam focusing based on the idea of integration, so that the laborcost is greatly reduced; meanwhile, compared with a traditional diaphragm type WDM device, the structure has the advantages that a collimator is replaced by the single-fiber array and the micro lens array which are lower in cost, the collimator is completely omitted, the material cost is greatly reduced, and the occupied space of the device is saved.

Description

technical field [0001] The invention relates to the field of optical fiber communication, in particular to a single edge array type WDM structure based on a microlens. Background technique [0002] WDM (Wavelength Division Multiplexing), that is, wavelength division multiplexing, is a technology that combines multiple optical carrier signals of different wavelengths at the transmitting end through a multiplexer and then couples them to the same fiber of the optical line for transmission. [0003] Most of the existing WDM devices are composed of three-port devices cascaded, and each three-port device is mainly composed of a collimator and a filter. There are usually two ways to implement WDM devices. One is to manually perform optical alignment of each three-port device before cascading, but the labor cost is extremely high; the other is to abandon the glass tube structure and directly pass The filter directs the reflected light to the next-level collimator, but it has extre...

AI Technical Summary

Problems solved by technology

There are usually two ways to implement WDM devices. One is to manually align each three-port device before cascading, but the labor cost is extremely high; the other is to abandon the glass tube structure and directly pass The filter aligns the reflected light to the next-level collimator, but it has extremely high operating requirements for the operator, and the light efficiency is also very low

Therefore, the above solutions have problems in terms of personnel cost and light alignment efficiency. At the same time, the above solutions are inseparable from the extensive use of collimators, which increases the cost of raw materials

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