The invention provides micro-optical and fiber based solutions to the problem of reflective telescopes with secondary or tertiary obscurations, and further, it ameliorates secondary or tertiary obscurations in compact reflective fiber-coupled telescopes configured as optical transmitters. One solution uses a custom hollow optical fiber and lens system to generate an annular beam that would not be obscured by the telescope secondary obscuration. Another solution uses a fiber coupled micro-axicon lens assembly to achieve the same result.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
 The United States Government has rights in this invention pursuant to Contract No. DE-AC52-07NA27344 between the United States Department of Energy and Lawrence Livermore National Security, LLC.