  We report on the realization of high-performance silica integrated
two-dimensional lens assisted beam-steering (LABS) arrays along with the
first-of-their-kind point-to-multiplepoint optical frequency transfer. {The
LABS equips with $N$ antennas} and has the capability to produce arbitrary
number of output beams with different output angles with the simple control
complexity. We demonstrate that the LABS has 16 scanning angles, which can
support {the access capability for the maximum of simultaneous 16 user nodes.}
The coaxial configuration for transmitting and receiving the light as a
monolithic transceiver allows us to reduce the out-of-loop phase noise
significantly. Finally, the LABS-based non-blocking point-to-multiplepoint
in-door free-space optical frequency transfer links with 24 m and 50 m
free-space links are shown. After being compensated for the free-space link up
to 50 m, the fractional frequency instability of $4.5\times10^{-17}$ and
$7.7\times10^{-20}$ at the averaging time of 1 s and 20,000 s, respectively,
can be achieved. The present work proves the potential application of the 2D
LABS in free-space optical time-frequency transfer and provides a guidance for
developing a chip-scale optical time-frequency transfer system.
