  TESLA is designed as an electron-positron linear collider (LC) based on
super-conducting technology. A second interaction region is forseen to be
incorporated in the design allowing its possible operation as a photon
collider. In this paper I describe the basic design of the $\gamma \gamma$
interaction region taking into account the beam-beam and laser related issuses
and review some aspects of other accelerator components such as the feedback
system and the beam dump which are critical to the operation of TESLA as a
photon collider.
