Double-optical-fiber three-way optical wave selector

Abstract

The invention discloses a double-optical-fiber three-way optical wave selector which comprises two focusing lenses, an optical filter, a laser and a photo electric receiver, wherein the two focusing lenses are connected with the optical fiber, the upper surface and the lower surface of the optical filter are coated with optical filter films, the two focusing lens are placed and arranged in light ray incidence and transmission directions, the optical filter is obliquely arranged between the two focusing lenses, an included angle between the optical filter and the incidence light rays is 45 degrees, the photo electric receiver is arranged on a reflecting light path, and the laser is arranged at the transmission light side symmetrical to the photo electric receiver. The technical scheme of the invention realizes the selection function of optical waves with the specific wave length through the simple optical path arrangement and the specific optical filter structure, and the segmented transmission of optical signals can be realized through the serial connection of a plurality of optical wave selectors. Compared with the traditional optical branching filter, the invention greatly simplifies the optical path arranging mode and reduces the manufacture cost.

Description

technical field [0001] The invention belongs to the field of optical communication, and in particular relates to a dual-fiber three-way optoelectronic device used in optical fiber communication, which realizes the propagation of optical communication signals of different wavelengths. Background technique [0002] With the development of communication technology, the use of optical fiber for data exchange and transmission has become a development trend in the field of communication. In the optical communication system, the signal is carried by the optical signal as the carrier to achieve high-speed and stable transmission. Usually, gratings are used to filter light waves of different wavelengths in the process of light wave transmission, so as to achieve the passage of light waves of specific wavelengths purposefully. The traditional grating method has a complex structure and only selects light waves mixed with multiple wavelengths. It has a single function and cannot realiz...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new dual-fiber three-way light wave selector structure in order to solve the defects that the existing light wave selector has a complex structure and cannot realize segmental transmission of a certain light wave signal

Images