Frequency-modulation-mode-locked optical parametric oscillator

被引：14

作者：

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

Samanta, G. K. ^{[1
,2
]}

Devi, Kavita ^{[1
]}

Kumar, S. Chaitanya ^{[1
]}

Ebrahim-Zadeh, M. ^{[1
,3
]}

机构：

[1] ICFO Inst Ciencies Fotoniques, Barcelona 08860, Spain

[2] Phys Res Lab, Div Theoret Phys, Ahmadabad 380009, Gujarat, India

[3] ICREA, Barcelona 08010, Spain

来源：

OPTICS LETTERS | 2012年 / 37卷 / 01期

关键词：

ANTIRESONANT RING INTERFEROMETER; GENERATION; LOCKING;

D O I：

10.1364/OL.37.000115

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a novel technique for the generation of mode-locked pulses from a continuous-wave (cw) optical parametric oscillator (OPO). The technique is based on the deployment of a phase modulator in combination with an antiresonant ring interferometer internal to a cw OPO, simultaneously providing spectral broadening and phase-to-amplitude feedback modulation. The scheme is implemented in a doubly-resonant cw OPO based on MgO:sPPLT, configured in a standing-wave cavity and pumped at 532 nm. With the phase modulator activated and the cavity length synchronized, a stable train of 800 ps pulses is generated at a repetition rate of 160 MHz. Using single-pass second harmonic generation (SHG) of the OPO output, we observe a four times enhancement in SHG compared with cw operation, confirming the real achievement of energy concentration as a result of mode-locked operation. (C) 2011 Optical Society of America

引用

页码：115 / 117

页数：3

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