Open AccessMeasurement of high time-bandwidth pulses on a chip with SPIDER
Author(s) -
Alessia Pasquazi,
Marco Peccianti,
Roberto Morandotti,
José Azaña,
David Moss
Publication year - 2012
Publication title -
photonics letters of poland
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.184
H-Index - 16
ISSN - 2080-2242
DOI - 10.4302/plp.2012.1.04
Subject(s) - ultrashort pulse , frequency resolved optical gating , physics , optics , picosecond , oscilloscope , interferometry , photonics , pulse shaping , optoelectronics , bandwidth limited pulse , laser , detector
We develop a method capable of characterizing both the amplitude and phase of ultrafast optical pulses with the aid of a synchronized incoherently-related clock pulse based on a novel variation of SPIDER. It exploits degenerate four-wave-mixing and its design is amenable for full "on chip" signal characterization. By implementing our method in a CMOS compatible waveguide, we measure pulses with < 100mW peak power, a frequency bandwidth > 1THz, and up to 100ps pulsewidths. Our novel reconstruction algorithm that we call Fresnel-Limited Extraction Procedure (FLEA), yields a time-bandwidth product (TBP)>100