Webcam autofocus mechanism used as a delay line for the characterization of femtosecond pulses

被引：2

作者：

Castro-Marin, Pablo ^{[1
]}

Kapellmann-Zafra, Gabriel ^{[1
]}

Garduno-Mejia, Jesus ^{[1
]}

Rosete-Aguilar, Martha ^{[1
]}

Roman-Moreno, Carlos J. ^{[1
]}

机构：

[1] Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Mexico City 04510, DF, Mexico

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2015年 / 86卷 / 08期

关键词：

AUTOCORRELATION; DEVICES;

D O I：

10.1063/1.4929366

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In this work, we present an electromagnetic focusing mechanism (EFM), from a commercial webcam, implemented as a delay line of a femtosecond laser pulse characterization system. The characterization system consists on a second order autocorrelator based on a two-photon-absorption detection. The results presented here were performed for two different home-made femtosecond oscillators: Ti:sapph @ 820 nm and highly chirped pulses generated with an Erbium Doped Fiber @ 1550 nm. The EFM applied as a delay line represents an excellent alternative due its performance in terms of stability, resolution, and long scan range up to 3 ps. Due its low power consumption, the device can be connected through the Universal Serial Bus (USB) port. Details of components, schematics of electronic controls, and detection systems are presented. (C) 2015 AIP Publishing LLC.

引用

页数：5

共 8 条

[1] Autocorrelation and ultrafast optical thresholding at 1.5μm using a commercial InGaAsP 1.3μm laser diode [J].