Arbitrary-Order Bandwidth-Tunable Temporal Differentiator Using a Programmable Optical Pulse Shaper

Author

Dong, Jianji ; Yu, Yuan ; Zhang, Yin ; Luo, Bowen ; Yang, Ting ; Zhang, Xinliang

Author_Institution

Wuhan Nat. Lab. for Optoelectron., Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

3

Issue

6

fYear

2011

Firstpage

996

Lastpage

1003

Abstract

We experimentally demonstrate an arbitrary-order bandwidth-tunable differentiator using a programmable optical pulse shaper, which is based on spatial diffraction and liquid crystal modulation. The impact of bandwidth of optical pulse shaper on output power and pulsewidth of differentiation is theoretically analyzed. In the experiment, all first-order, second-order, and third-order differentiators with bandwidths of 80, 160, and 320 GHz are obtained with average deviations of less than 4.2%. The differentiation of pseudorandom nonreturn-to-zero (NRZ) signals at 10 and 20 Gbit/s is also discussed.

Keywords

high-speed optical techniques; optical pulse shaping; optical signal detection; arbitrary-order bandwidth-tunable temporal differentiator; liquid crystal modulation; programmable optical pulse shaper; pseudorandom nonreturn-to-zero signals; spatial diffraction; Bandwidth; Optical fibers; Optical filters; Optical pulse shaping; Optical pulses; Ultrafast optics; Analog optical signal processing; pulse shaping; technologies for computing; ultrafast processing;

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2011.2170965

Filename

6041008