Title :
Waveform Monitoring Based on Cascaded Symmetric Mach-Zehnder Interferometer
Author :
Yang, Yi ; Cui, Jian ; Li, Zheng ; Zheng, Zheng
Author_Institution :
Coll. of Inf. Sci. & Technol., Donghua Univ., Shanghai, China
Abstract :
The all optical window equivalent-time sampling method based on cascaded symmetric Mach-Zehnder interferometer are present. A system model based on SOA dynamic model was founded to analyze sampling process. The pulse broadening in PIN and its response are discussed too. The evolution of sampling window due to edge shift of sampling windows and sensitivity due to SOA bias current and aptitude of control pulse are analyzed theoretically. The all-optical waveform sampling system with submilliwatt optical signal sensitivity and subpicosecond temporal resolution is demonstrated simultaneously. The results have shown that the CSOS sampler system can measure continuous waveform with low error.
Keywords :
Mach-Zehnder interferometers; optical information processing; semiconductor optical amplifiers; signal sampling; PIN; SOA dynamic model; all optical waveform sampling system; cascaded symmetric Mach-Zehnder interferometer; equivalent time sampling method; optical sampler; pulse broadening; submilliwatt optical signal sensitivity; waveform monitoring; Fiber nonlinear optics; High speed optical techniques; Monitoring; Optical filters; Optical interferometry; Optical pulses; Optical sensors; Sampling methods; Semiconductor optical amplifiers; Ultrafast optics;
Conference_Titel :
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4963-7
Electronic_ISBN :
978-1-4244-4964-4
DOI :
10.1109/SOPO.2010.5503999
