  We report on transferring 1E-16-level fractional frequency stability of a
"master laser" operated at 1.5 {\mu}m to a "slave laser" operated at 698 nm,
using a femtosecond fiber comb as transfer oscillator. With the 698 nm laser,
the 1S_0 - 3P_0 clock transition of 87Sr was resolved to a Fourier-limited line
width of 1.5 Hz (before: 10 Hz). Potential noise sources contributed by the
frequency comb are discussed in detail.
