Title :
Tunable Wavelength Conversion of ps-Pulses Exploiting Cascaded Sum- and Difference Frequency Generation in a PPLN-Fiber Ring Laser
Author :
Wang, Jian ; Sun, Junqiang ; Kurz, J.R. ; Fejer, M.M.
Author_Institution :
Wuhan Nat. Lab. for Opto-electronics
Abstract :
Tunable wavelength conversion of picosecond (ps)-pulses based on cascaded sum- and difference frequency generation is proposed and demonstrated by use of a fiber ring laser incorporating a periodically poled lithium niobate waveguide and two parallel-arranged tunable filters (TFs). The pulsed signal with 40-GHz repetition rate and 1.57-ps pulsewidth is employed. No external pump and control sources are required in the wavelength converter. By properly adjusting two TFs to change the lasing pump and control wavelengths, flexible wavelength conversion from a changeable input signal wavelength to a variable output idler wavelength is achieved
Keywords :
fibre lasers; laser cavity resonators; lithium compounds; optical filters; optical frequency conversion; optical pulse generation; optical pumping; optical wavelength conversion; ring lasers; 1.57 ps; 40 GHz; LiNbO3; cascaded sum-frequency generation; difference frequency generation; fiber laser; lasing control wavelength; lasing pump; parallel-arranged filters; periodically-poled lithium niobate; picosecond-pulses; ring laser; tunable filters; tunable wavelength conversion; Fiber lasers; Filters; Frequency conversion; Lithium niobate; Pump lasers; Quantum cascade lasers; Ring lasers; Space vector pulse width modulation; Tunable circuits and devices; Waveguide lasers; All-optical wavelength conversion; cascaded sum- and difference frequency generation (cSFG/DFG); fiber ring laser; nonlinear optics; periodically poled lithium niobate (PPLN);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.883213
