Theory of Talbot lasers

被引：76

作者：

de Chatellus, H. Guillet ^{[1
]}

Lacot, E. ^{[1
]}

Glastre, W. ^{[1
]}

Jacquin, O. ^{[1
]}

Hugon, O. ^{[1
]}

机构：

[1] Univ Grenoble 1, CNRS, Lab Interdisciplinaire Phys, UMR 5588, F-38041 Grenoble, France

来源：

PHYSICAL REVIEW A | 2013年 / 88卷 / 03期

关键词：

FREQUENCY COMB; FRACTIONAL REVIVALS; PULSE GENERATION;

D O I：

10.1103/PhysRevA.88.033828

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We provide a theoretical study of frequency-shifted feedback (FSF) lasers, i.e., lasers with an internal frequency shifter, seeded with a monochromatic wave. The resulting spectrum consists in a set of equidistant modes, labeled by n, whose phases vary quadratically with n. We prove the emergence of a temporal fractional Talbot effect, leading to generation of Fourier-transform-limited pulses at a repetition rate tunable by the parameters of the FSF cavity (cavity length and frequency shift per round trip), and limited by the spectral bandwidth of the laser. We characterize in detail the output field of this so-called "Talbot laser" and emphasize its specific intensity fluctuations. We evidence connections with some aspects of number theory by the appearance of Gauss sums and theta series in the expression of the laser field. Our predictions are in full agreement with the experimental results published in Guillet de Chatellus et al. [Opt. Express 21, 15065 (2013)]. Practical applications and limitations are discussed.

引用

页数：12

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