Title :
Superior Method for Measuring Chirp Structure of Femtosecond Supercontinuum Pulse
Author :
Hang Zhang ; Jun Cheng ; Jinhai Si ; Hui Liu ; Lihe Yan ; Feng Chen ; Xun Hou
Author_Institution :
Key Lab. for Phys. Electron. & Devices of the Minist. of Educ., Xi´an Jiaotong Univ., Xi´an, China
Abstract :
We present a straightforward method to measure the temporal chirp structure of supercontinuum (SC) pulses. Wavelength-tunable laser pulses acquired from the chirped SC are spatially separated from the incident SC region, which can be detected with zero background in the detection plane. Experimental results show that this convenient method, which is based on ultrafast transient lens effect, has many advantages compared with ordinary optical Kerr gate method.
Keywords :
chirp modulation; optical Kerr effect; optical pulse generation; supercontinuum generation; femtosecond supercontinuum pulse; incident SC region; optical Kerr gate method; spectral measurement; temporal chirp structure measurement; ultrafast transient lens effect; wavelength tunable laser pulses; Chirp; Laser beams; Laser excitation; Logic gates; Nonlinear optics; Probes; Ultrafast optics; Nonlinear optics; supercontinuum; transient lens effect; ultrafast optics;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2233730
