Open AccessHigh-sensitivity pulse spectrogram measurement using two-photon absorption in a semiconductor at 15-�m wavelength
Author(s) -
Kensuke Ogawa,
Mark Pelusi
Publication year - 2000
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.7.000135
Subject(s) - optics , femtosecond , femtosecond pulse shaping , materials science , chirp , bandwidth limited pulse , multiphoton intrapulse interference phase scan , frequency resolved optical gating , ultrashort pulse , pulse (music) , absorption (acoustics) , optoelectronics , laser , physics , detector
A femtosecond pulse characterization technique is developed using frequency-resolved optical gating based on the two-photon absorption in an InP crystal.The technique provides direct visual monitoring of pulse frequency chirping in the time-spectral domain for femtosecond pulses with a pulse energy as low as 3.8 pJ.Pulse chirping and pedestal wings of 10-GHz optical fiber solitons are characterized experimentally for the first time by this technique.