Abstract: A three-way optical device includes a case, a sleeve connected to one of openings of the case, photoelectric elements disposed in one of the openings, and optical filters. Each photoelectric element is associated with an optical signal. Each optical filter is located in the case, corresponding to at least two photoelectric elements, and each optical filter is disposed on an optical path of optical signals associated with the at least two corresponding photoelectric elements. Each optical filter enables the optical signal associated with at least one photoelectric element to penetrate and reflects optical signals associated with the remaining corresponding photoelectric elements, in which the optical signals reflected by the optical filter and penetrating the same optical filter have different wavelengths.

Abstract: A pluggable bi-directional transceiver with a single optical fiber comprises a sub-assembly module, a circuit board, a main frame, an upper cover, a lower cover, a tab-base and a tab, connected to a communication equipment. The sub-assembly module connected to a single optical fiber includes a WDM, which reflects or transmits a specific wavelength optical signal adapted to function in receiving and transmitting optical signal. The circuit board exchanges the signal of the sub-assembly module with the communication equipment. The main frame and the upper and lower covers are used to fix and protect elements. The tab and tab-base are used to fix the transceiver on the equipment or remove from it. The specifications of the transceiver follow the small form-factor pluggable transceiver multi-source agreement.

Abstract: A pluggable bi-directional transceiver with a single optical fiber comprises a sub-assembly module, a circuit board, a main frame, an upper cover, a lower cover, a tab-base and a tab, connected to a communication equipment. The sub-assembly module connected to a single optical fiber includes a WDM, which reflects or transmits a specific wavelength optical signal adapted to function in receiving and transmitting optical signal. The circuit board exchanges the signal of the sub-assembly module with the communication equipment. The main frame and the upper and lower covers are used to fix and protect elements. The tab and tab-base are used to fix the transceiver on the equipment or remove from it. The specifications of the transceiver follow the small form-factor pluggable transceiver multi-source agreement.