Single-step writing of Bragg grating waveguides in fused silica with an externally modulated femtosecond fiber laser

被引：116

作者：

Zhang, Haibin ^{[1
]}

Eaton, Shane M. ^{[1
]}

Herman, Peter R. ^{[1
]}

机构：

[1] Univ Toronto, Inst Opt Sci, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada

来源：

OPTICS LETTERS | 2007年 / 32卷 / 17期

关键词：

D O I：

10.1364/OL.32.002559

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

For the first time to our knowledge, high-strength (> 30 dB) first-order Bragg grating waveguides were fabricated in bulk fused silica glass in a single-scanning step by modulating a high-repetition-rate feratosecond fiber laser with an external acousto-optic modulator. The modulation induced a waveguide segmentation by delivering controlled bursts of laser pulses to define an array of partially overlapped refractive index voxels. With appropriate choice of modulation frequency and sample scanning speed, low loss waveguides could be formed at high writing speeds to yield sharp Bragg spectral resonances tunable over the 1300 to 1550 mn telecom band. Effects of acousto-optic modulation duty cycle on propagation loss and grating strength are characterized. This modulation method offers facile control and integration of multiwavelength Bragg grating devices to enhance overall functionality of optical circuits in three-dimensional geometries. (c) 2007 Optical Society of America.

引用

页码：2559 / 2561

页数：3

共 9 条

[1]

DAVIS GM, 1996, P ICIP, V1, P21

[2] Heat accumulation effects in femtosecond laser-written waveguides with variable repetition rate [J].

Eaton, SM ;

Zhang, HB ;

Herman, PR .

OPTICS EXPRESS, 2005, 13 (12) :4708-4716

[3] Direct laser written waveguide-Bragg gratings in bulk fused silica [J].

Marshall, Graham D. ;

Ams, Martin ;

Withford, Michael J. .

OPTICS LETTERS, 2006, 31 (18) :2690-2691

[4] Optical properties of waveguides written by a 26 MHz stretched cavity Ti:sapphire femtosecond oscillator [J].

Osellame, R ;

Chiodo, N ;

Maselli, V ;

Yin, A ;

Zavelani-Rossi, M ;

Cerullo, G ;

Laporta, P ;

Aiello, L ;

De Nicola, S ;

Ferraro, P ;

Finizio, A ;

Pierattini, G .

OPTICS EXPRESS, 2005, 13 (02) :612-620

[5] Bulk heating of transparent materials using a high-repetition-rate femtosecond laser [J].

Schaffer, CB ;

García, JF ;

Mazur, E .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2003, 76 (03) :351-354

[6] Waveguide writing in fused silica with a femtosecond fiber laser at 522 nm and 1 MHz repetition rate [J].

Shah, L ;

Arai, A ;

Eaton, S ;

Herman, P .

OPTICS EXPRESS, 2005, 13 (06) :1999-2006

[7] Self-organized nanogratings in glass irradiated by ultrashort light pulses [J].

Shimotsuma, Y ;

Kazansky, PG ;

Qiu, JR ;

Hirao, K .

PHYSICAL REVIEW LETTERS, 2003, 91 (24)

[8] Type II high-strength Bragg grating waveguides photowritten with ultrashort laser pulses [J].

Zhang, Haibin ;

Eaton, Shane M. ;

Li, Jianzhao ;

Nejadmalayeri, Amir H. ;

Herman, Peter R. .

OPTICS EXPRESS, 2007, 15 (07) :4182-4191

[9] Femtosecond laser direct writing of multiwavelength Bragg grating waveguides in glass [J].

Zhang, Haibin ;

Eaton, Shane M. ;

Li, Jianzhao ;

Herman, Peter R. .

OPTICS LETTERS, 2006, 31 (23) :3495-3497

← 1 →