Compact, fiber-compatible, cascaded Raman laser.
Cascaded Raman Stokes lasing in an ultrahigh-Q silica microsphere resonator coupled to a tapered fiber is demonstrated and analyzed. With less than 900 microW of pump power near 980 nm, five cascaded Stokes lasing lines are generated. In addition, a threshold power of 56.4 microW for the first-order Stokes lasing is achieved. The Stokes lasing lines exhibit distinct characteristics depending on their order, as predicted by theoretical analysis.
Min
Bumki
B
Department of Applied Physics, California Institute of Technology, Pasadena, California 91125, USA.
Kippenberg
Tobias J
TJ
Vahala
Kerry J
KJ