Abstract: An optical module includes a light emitting assembly. The light emitting assembly includes a plurality of lasers, a plurality of wavelength division multiplexers and a lens group. The plurality of lasers emit a plurality of optical signals. The plurality of wavelength division multiplexers multiplex the plurality of optical signals into a plurality of composite optical signals. The lens group includes a first lens, a second lens, and a third lens. The second lens is configured to transmit a first part of the plurality of composite optical signals exited from the first lens, reflect a second part of the plurality of composite optical signals exited from the third lens to the first lens, and transmit the second part of the plurality of composite optical signals reflected by the first lens, so as to multiplex the plurality of composite optical signals into the merge composite optical signal.

Abstract: An optical module includes a circuit board, a first support member, a laser component and a detector component. The first support member supports the circuit board, a through hole is provided in the first support member below the circuit board; the laser component is provided on front surface of the first support member and electrically connected to welding pin on front surface of the circuit board through wire bonding; the detector component is provided on back surface of the circuit board, located in the through hole, and is electrically connected to signal wiring on back surface of the circuit board; the detector component is configured to convert reception light into electrical signal. With the first support member, light emission and reception components may be directly arranged on a carrier formed by the first support member and the circuit board, facilitating miniaturization of the optical module.

Abstract: An optical module includes a light emitting assembly. The light emitting assembly includes a plurality of lasers, a plurality of wavelength division multiplexers and a lens group. The plurality of lasers emit a plurality of optical signals. The plurality of wavelength division multiplexers multiplex the plurality of optical signals into a plurality of composite optical signals. The lens group includes a first lens, a second lens, and a third lens. The second lens is configured to transmit a first part of the plurality of composite optical signals exited from the first lens, reflect a second part of the plurality of composite optical signals exited from the third lens to the first lens, and transmit the second part of the plurality of composite optical signals reflected by the first lens, so as to multiplex the plurality of composite optical signals into the merge composite optical signal.

Abstract: An optical module includes a light receiving assembly and a first fiber optic adapter. The light receiving assembly includes a first lens group, a plurality of wavelength division demultiplexers and at least one light receiving component. The first lens group is configured to split optical signals transmitted to the first cavity body for a first time according to a wavelength to obtain a first optical signal beam and a second optical signal beam. The plurality of wavelength division demultiplexers include a first wavelength division demultiplexer and a second wavelength division demultiplexer. The first wavelength division demultiplexer is configured to split the first optical signal beam for a second time according to a wavelength. The second wavelength division demultiplexer is configured to split the second optical signal beam for a second time according to a wavelength. The light receiving component includes a plurality of light receiving chips.