Coaxial laser integrating optical transmit-receive function

Abstract

The invention discloses a coaxial laser integrating optical transmit-receive functions in the technical field of optical communication. A pipe cap and an optical transmit-receive component carrier form a sealing structure, the sealing structure is internally provided with an optical branching component and an optical transmit-receive component which are respectively fixed on the optical transmit-receive component carrier, the optical transmit-receive component is provided with optical transmitting terminals and optical receiving terminals, the optical branching component is provided with an optical filter of 45 degrees, the front surface of the optical filter is coated with a reflecting film and an anti-reflection film, and the back surface of the optical filter is coated with the anti-reflection film or is not coated with a film, and the optical filter is arranged at the uppermost part of the optical branching component with 45 degrees; the optical transmitting terminal or the optical receiving terminal is arranged at the side of the front surface of the optical filter of 45 degrees, and the corresponding optical transmitting terminal or the optical receiving terminal is arranged at the lower part of the back surface of the optical filter of 45 degrees. Through coupling welding once, peripheral matched structural parts are saved by half, the processing time of subsequent coupling production is shortened by half, integration of transmission and detection, miniaturization and low cost of a photoelectric device are realized, and the stability of optical integration and convergence is high.

Description

technical field [0001] The invention relates to a semiconductor optoelectronic device in the field of optical communication technology, in particular to a coaxial laser. Background technique [0002] As one of the core technologies in the information age, optical communication technology has been widely used in voice communication, data exchange, video transmission, sensing, precision measurement and other fields. The transmission of information is inseparable from the receiving and sending of signals. At present, the single-fiber bidirectional device is used as the core device for signal transmission and reception. When transmitting two wavelengths of optical signals in the same optical fiber at the same time, the structure of the single-fiber bidirectional device is: a semiconductor laser and a semiconductor detector are coupled through two Welding and fixing it in the metal structure with the beam splitter installed has the disadvantages of complex structure and process,...

AI Technical Summary

Problems solved by technology

At present, the single-fiber bidirectional device is used as the core device for signal transmission and reception. When transmitting two wavelengths of optical signals in the same optical fiber at the same time, the structure of the single-fiber bidirectional device is: a semiconductor laser and a semiconductor detector are coupled through two It is welded and fixed in the metal structure with the beam splitter installed, and its defects are: the structure and process are relatively complicated, the manufacturing cost is high, and the processing time period is long

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