Up-converted photorefractive optical transient detection with femtosecond laser pulses

被引：2

作者：

Sukeert ^{[1
]}

Kumar, S. Chaitanya ^{[2
]}

Schunemann, P. G. ^{[3
]}

de Valcarcel, German J. ^{[4
]}

Ebrahim-Zadeh, M. ^{[1
,5
]}

Esteban-Martin, A. ^{[1
,4
]}

机构：

[1] Barcelona Inst Sci & Technol, ICFO Inst Ciencies Foton, Castelldefels 08860, Barcelona, Spain

[2] Tata Inst Fundamental Res Hyderabad, 36-P Gopanpally, Hyderabad 500046, Telangana, India

[3] BAE Syst Inc, MER15-1813,POB 868, Nashua, NH 03061 USA

[4] Univ Valencia, Dept Opt & Optometria & Ciencies Visio, Dr Moliner 50, Burjassot 46100, Spain

[5] ICREA, Passeig Lluis Companys 23, Barcelona 08010, Spain

来源：

OPTICS EXPRESS | 2023年 / 31卷 / 10期

关键词：

ELECTROOPTIC CRYSTALS; HOLOGRAPHIC STORAGE; SCATTERING SURFACE; ULTRASONIC MOTION; GRATING FORMATION; DIFFERENTIATION; GAAS;

D O I：

10.1364/OE.486336

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on experimental demonstration of optical transient detection (OTD) based on photorefractive two-wave mixing of femtosecond pulses. The demonstrated technique also combines nonlinear-crystal-based OTD with up-conversion from infrared into the visible range. The approach enables measurement of phase changes of a dynamic signal in the infrared using GaP- or Si-based detectors while suppressing stationary background. Experimental results reveal existence of the relation between input phases in the infrared and output phases in the visible wavelength range. We further present experimental evidence of additional merits of up-converted transient phase analysis under noisy conditions, such as residual continuous-wave emission affecting the ultrashort pulses from the laser.

引用

页码：16939 / 16951

页数：13

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