A13C2H2frequency-stabilized, polarization-maintained erbium fiber ring laser with no frequency modulation

We have constructed a new
¹³
C
2
H
2
frequency-stabilized fiber laser whose output beam has no frequency modulation. The frequency stability reached as high as 1.8 × 10
^-10
for τ of 1 s, and 1.5 × 10
^-11
for τ of 100 s.