Title :
Experimental evidence for strong UV transition contribution in the resonant nonlinearity of doped fibers
Author :
Digonnet, Michel J F ; Sadowski, R.W. ; Shaw, H.J. ; Pantell, R.H.
Author_Institution :
Stanford Univ., CA, USA
fDate :
2/1/1997 12:00:00 AM
Abstract :
We report a new theoretical interpretation of the strong resonantly-enhanced third-order nonlinearity observed in fibers doped with Nd3+, Er3+, or Yb3+. For each fiber, the absolute contributions of the near resonance (IR-visible) and far from resonance (UV) transitions to the nonlinearity are calculated and compared to experimental values. We show that in all cases, a large fraction of the measured nonlinearity is due to strong UV transitions. The consequences of this observation on the bandwidth, switching power and response time of switches based on this effect are discussed
Keywords :
erbium; neodymium; nonlinear optics; optical fibre theory; optical switches; ytterbium; Er3+ doped fiber; IR transitions; Nd3+ doped fiber; UV transitions; Yb3+ doped fiber; doped fibers; far from resonance; near resonance; nonlinearity; optical fibre switches; resonant nonlinearity; response time; strong UV transition contribution; strong UV transitions; strong resonantly-enhanced third-order nonlinearity; switching power; theoretical interpretation; visible transitions; Absorption; Bandwidth; Delay; Frequency; Optical pumping; Optical refraction; Optical switches; Optical variables control; Resonance; Stationary state;
Journal_Title :
Lightwave Technology, Journal of
