The present invention discloses an optoelectronic transceiver, comprising a
first PCB, a transmitting device, a receiving device and a housing. The
transmitting device includes a laser diode, and the receiving device
includes a photo diode. The laser diode and photo diode are encapsulated
by a sleeve, respectively. For the laser diode, a first cambered surface
of the sleeve aligns a laser beam such that it goes straight forward along
the sleeve, and the second cambered surface of the sleeve focuses the
laser beam. The housing covers the first PCB, the transmitting device and
the receiving device.