Small form factor optoelectronic transceivers

A transceiver module comprising:

• a compliant retainer having a first end portion oppositely disposed to a second end portion, the first end portion dimensioned and configured to receive optical connectors;
• a circuit board being received in the second end portion of the retainer, the circuit board connecting to optical subassemblies for coupling to the optical connectors, the circuit board for processing signals to and from the transceiver module and the optical subassemblies, the second end portion including a U shaped portion for permitting the optical subassemblies to be received in the retainer;
• the transceiver including a transmitter optical subassembly matable to a receiver optical subassembly, each of the transmitter optical subassembly and the receiver optical subassembly including:
• a substantially rectangular housing forming a bore configured and dimensioned to receive a ferrule having an optical fiber therein, the bore being adjacent to a ferrule stop integrally formed in the housing;
• and
• a lens integrally formed with the housing, the lens having a planar surface and a convex surface opposite the planar surface, the planar surface of the lens being substantially parallel to and set in from the ferrule stop to prevent contact between the ferrule and the planar surface.

An optical subassembly comprising:

• a housing including a first end portion and a second end portion oppositely disposed from the first end portion;
• the first end portion forming a bore configured and dimensioned to receive a connector ferrule having an optical fiber therein, the bore being adjacent to a ferrule stop integrally formed in the housing;
• a lens integrally formed with the housing, the lens having a planar surface and a convex surface opposite the planar surface, the planar surface of the lens being substantially parallel to and set in from the ferrule stop to prevent contact between the ferrule and the planar surface;
• and
• an optical device in operative relationship with the bore, the lens being optically aligned with the fiber in the ferrule;
• wherein the convex surface is separated from the planar surface to permit light, from the optical fiber, beyond an acceptance numerical aperture for the lens to be redirected back into the first end portion.