Abstract: Optical waveguides with integrated collimating lenses and/or reflectors or mirrors are disclosed. The waveguides can include a convex collimating lens disposed at an end of the core. An integrated reflecting device may be inserted into the core so that at least a portion of the signal is directed upward through a convex collimating lens disposed above the upper cladding and core for power monitoring. An additional integrated reflecting device may be incorporated beyond a distal end of the core of the waveguide for power monitoring. The lenses and reflective devices or mirrors are made using reflow techniques and therefore do not require the use of separate, prefabricated components.