Optical-parametric-generation process driven by femtosecond pulses: Timing and carrier-envelope phase properties

被引：45

作者：

Manzoni, C. ^{[1
]}

Cirmi, G. ^{[1
]}

Brida, D. ^{[1
]}

De Silvestri, S. ^{[1
]}

Cerullo, G. ^{[1
]}

机构：

[1] Politecn Milan, CNR, INFM,Dipartimento Fis, Natl Lab Ultrafast & Ultraintense Opt Sci, I-20133 Milan, Italy

来源：

PHYSICAL REVIEW A | 2009年 / 79卷 / 03期

关键词：

fluctuations; nonlinear equations; nonlinear media; optical parametric devices; optical pulse generation; timing; timing jitter; QUANTUM FLUCTUATIONS; CYCLE PULSES; LASER; AMPLIFICATION; CONTINUUM; NOISE; POWER;

D O I：

10.1103/PhysRevA.79.033818

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate, both numerically and experimentally, the optical parametric generation (OPG) process in second-order nonlinear crystals driven by femtosecond pulses. We model the OPG process by solving the coupled second-order three-wave nonlinear propagation equations in the plane-wave limit, using noise fields to mimic the vacuum fluctuations. We focus on two parameters: (i) the temporal jitter between the OPG and the pump pulse; (ii) the carrier-envelope phase (CEP) relationship between the OPG and the pump pulse. Both numerical simulations and experiments support the following conclusions: (i) in the regime of low pump depletion the OPG pulse is synchronized with the pump, but its energy presents strong fluctuations; (ii) in the regime of high pump depletion, the energy of the OPG pulse stabilizes, but a temporal jitter with respect to the pump pulse is introduced; (iii) in both cases, the CEP relationship between pump and OPG pulses is completely random.

引用

页数：10

共 51 条

[21] TRAVELING-WAVE PARAMETRIC GENERATION OF WIDELY TUNABLE, HIGHLY COHERENT FEMTOSECOND LIGHT-PULSES [J].