OPTICAL BI-DIRECTIONAL TRANSCEIVER MODULE

摘要

A bidirectional light transceiver module is provided to reduce the cost, size, and power consumption rate of a light source by producing the bidirectional light transceiver module even in using the light with a narrow gap between two wavelength bands. A bidirectional light transceiver module includes: an optical fiber passing the light with a wavelength of A band and the light with a wavelength of B band; an optical filter(130) having a vertical axis inclined to an incident axis below 20 degrees to pass the light with the A band wavelength and reflect the light with the B band wavelength in the different direction from the incident path; a stub(103) enclosing the output end of the optical fiber, receiving and reflecting the light with the B band wavelength reflected from the optical filter by inclining a predetermined region of the end portion, and having a reflecting mirror(106) installed on an inclined surface; a light receiving unit(220) receiving the light with the B band wavelength reflected by the reflecting mirror; and a light transmitting unit(210) executing injection the light with the A band wavelength having passed through the optical filter and outputting the light and progressing toward the optical fiber.