The Kyoto Tri-dimensional Spectrograph II (Kyoto3DII) is
a multimode optical spectrograph with four observation modes:
Fabry-Perot (FP) imager;
Integral Field Spectrograph (IFS) with a lenslet array; long-slit spectrograph;
and filter imaging modes.
This instrument is operated at Subaru cassegrain focus.

The aim of integrating Kyoto3DII with Subaru/AO188 is
to valuate the performance of the AO188 system in optical wavelength
and
to retrieve 3D data cubes with improved image quality.

According to model simulations by the AO188 team,
the AO188 system will reduce image sizes by about one third or so
even in the optical wavelength such as R band.
Our ~ 0.1 arcsec sampling well samples E50.

To connect the two instruments, we need a beam splitter
between the Kyoto3DII and the AO188.
Because major targets of this instrument are extragalactic objects,
which we can rarely find suitable natural guide stars,
our beam splitter must reflect shorter wavelengths including
that of the laser guide star (589 nm) to the AO188.
We designed our multilayer coated beam splitter
to pass the wavelength region longer than 640 nm to the Kyoto3DII
including H $alpha$ wavelength at the rest frame.

To adjust the Kyoto3DII with the beam of the AO188,
we need a new mount and designed it to well fit
to the mechanical limitations of the nasmyth floor.

In this poster, we'll show the simulations of the expected images,
and the current status of developments and commissioning.