Methods, systems, and apparatus consistent with the present invention use multiple beams of laser energy for thermally processing a quartz object. A first laser beam is generated. A second laser beam is generated that is characteristically different than first laser beam. More particularly, the first beam and second beam may have different wavelengths, energy levels, and/or focal characteristics (such as beam geometry, beam energy distribution profile, and/or focal lengths). The first and second laser beams are then provided to a combiner, which forms the beams into a composite beam. The composite beam is then applied to a portion of the quartz object where it thermally processes the quartz by selectively heating the portion of the quartz. The composite beam may also be adjusted by changing the characteristic differences between the first and second laser beams in order to alter how the composite beam selectively heats the quartz.