Title :
All-optical switching using color centers in an irradiated phosphorus-doped fiber
Author :
Sadowski, R.W. ; Digonnet, M.J.F. ; Pantell, R.H. ; Shaw, H.J. ; Simpson, J.R. ; Man Yan
Author_Institution :
Photonics Res. Centre, West Point, NY, USA
fDate :
7/1/1996 12:00:00 AM
Abstract :
We report on all-optical switching of a 900-nm signal in a two-mode silica fiber based upon a resonant nonlinearity introduced by phosphorus color centers in a 22-cm irradiated P2O5-SiO2 fiber. Full switching was observed with only 1 μJ of absorbed 532-nm pump energy, with a projected response time under 10 ns. This switch required a peak power two orders of magnitude lower than for a fiber Kerr effect device operated under identical conditions.
Keywords :
colour centres; gamma-ray effects; optical fibres; optical switches; phosphorus; 1 muJ; 10 ns; 22 cm; 900 nm; P/sub 2/O/sub 5/-SiO/sub 2/; all-optical switching; color centers; irradiated phosphorus-doped fiber; resonant nonlinearity; response time; two-mode silica fiber; Delay; Electromagnetic wave absorption; Kerr effect; Optical devices; Optical fiber devices; Optical switches; Oscillators; Resonance; Silicon compounds; Stationary state;
Journal_Title :
Photonics Technology Letters, IEEE
