Optical transceiver having optics with rotated optical path

摘要

An optical communications module includes first and second opto-electronic devices and an optics device, in which a common beam path axis is oriented in a rotated direction about the axis at which a fiber is coupleable to the optics device barrel. The optics device includes a TIR lens aligned with the barrel axis. The TIR lens reflects optical signals between the barrel axis and a common beam path axis oriented in a direction having X-axis and Y-axis components offset by non-zero amounts from the barrel axis. The common beam path axis intersects first and second reflective interfaces of the device. The first opto-electronic device is aligned along a first beam path axis that intersects the first reflective interface and the common beam path axis. The second opto-electronic device is aligned along a second beam path axis that intersects the second reflective interface and the common beam path.

主权项

1. An optical communications module, comprising:
a housing assembly; a first opto-electronic device mounted in the housing assembly at a first position having a first X-axis coordinate with respect to a frame of reference having mutually perpendicular X, Y and Z axes; a second opto-electronic device mounted in the housing assembly at a second position having a second X-axis coordinate; and a optics device mounted in the housing assembly, the optics device comprising a barrel coupleable to an optical fiber, the barrel having a barrel optical axis defined by the Z axis, the optics device further comprising a Total Internal Reflection (TIR) lens aligned with the barrel optical axis and configured to reflect optical signals between the barrel optical axis and a common beam path axis oriented in a direction having an X-axis component offset by a non-zero amount from the barrel optical axis and a Y-axis component offset by a non-zero amount from the barrel optical axis, the common beam path axis intersecting a first reflective interface of the optics device and a second reflective interface of the optics device, the first opto-electronic device optically aligned along a first beam path axis intersecting the first reflective interface and the common beam path axis, the second opto-electronic device optically aligned along a second beam path axis intersecting the second reflective interface and the common beam path axis.