Integration of the PL at the Subaru Telescope. At the Nasmyth IR focus, light first enters AO188, where a first stage of AO correction is applied using a CWFS controlling a 188-actuator DM. The partially corrected beam then enters SCExAO, where an OAP collimates the beam. The beam is then reflected off a 2k BMC DM, then transmitted through a pupil mask mimicking the Subaru Telescope spider vanes. A dichroic splits light into a transmitted beam (λ > 950 nm) sent to the SCExAO IR modules, and a reflected beam (λ < 950 nm) sent to a periscope to transport the light toward a bench physically located above the near-infrared one. After, the output of the periscope, λ > 800 nm light is reflected by a filter toward the pyramid wavefront sensor, performing the ExAO by controlling the 2k BMC DM. The transmitted beam is then picked up and sent toward the PL injection by a BS wheel. Upstream, a WCU can be inserted. The injection module is composed of a collimating lens (L1) and two focusing lenses (L2 and L3). Light can be injected in either the PL or a SMF thanks to a translation stage for wavefront quality calibration, and comparison with the PL. The MM input of the PL is split into 19 SMFs that are spliced to a linear VG. Each output is collimated by an Obj. The two polarizations of the beams are split by a W before being dispersed by a VPH grating. Finally, the dispersed outputs are imaged on a CMOS detector thanks to two achromatic doublets. A typical image acquired using the SCExAO SuperK calibration laser is displayed in the bottom right corner of the figure, where we can see the 38 traces coming from both polarized beam of the 19 SM outputs. The spectral dispersion here is horizontal. Similarly, the output of the SMF can feed the spectrograph by inserting a mirror, and generates two traces coming from both polarizations.