Methods of Reducing or Eliminating Internal Optical Light Reflections, Increasing Yield, Reducing High-Temperature Transmission Failures and/or Improving OSA Transmission Performance and an Improved Optical Transceiver Implementing the Same

A method of making an optical transceiver, comprising

• roughening and/or darkening an optics mounting surface of a base or housing comprising first, second and third ports;
• securing or adhering a beam splitter mount to the roughened and/or darkened optics mounting surface;
• securing or mounting a beam splitter on or to the beam splitter mount, the beam splitter being transparent to one of an outgoing optical signal and a received optical signal and configured to reflect the other of the outgoing optical signal and the received optical signal, wherein the optics mounting surface (i) is not coplanar with or parallel to the beam splitter and (ii) does not intersect the outgoing optical signal, the received optical signal, or the reflected other one of the outgoing optical signal and the received optical signal:
• placing a transmitter optical subassembly (TOSA) in the first port, the TOSA comprising a laser diode configured to convert a received electrical signal to the outgoing optical signal;
• placing a receiver optical subassembly (ROSA) in the second port, the ROSA comprising a photodiode configured to convert the received optical signal to an outgoing electrical signal;
• and
• placing an optical fiber adapter in the third port, the optical fiber adapter holding and/or securing an optical fiber that receives the outgoing optical signal from the laser diode and provides the received optical signal to the beam splitter.