Ultrafast laser inscription of Bragg-grating waveguides using the multiscan technique

被引:31
作者
Brown, Graeme [1 ]
Thomson, Robert R. [1 ]
Kar, Ajoy K. [1 ]
Psaila, Nicholas D. [2 ]
Bookey, Henry T. [1 ]
机构
[1] Heriot Watt Univ, Dept Phys, Sch Engn & Phys Sci, SUPA, Edinburgh EH14 4AS, Midlothian, Scotland
[2] Optoscribe Ltd, Alba Innovat Ctr, W Lothian EH54 7GA, Scotland
基金
英国工程与自然科学研究理事会;
关键词
FEMTOSECOND LASER; FUSED-SILICA; WRITTEN; GLASS;
D O I
10.1364/OL.37.000491
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We report the fabrication of high-strength (>30 dB) first order Bragg-grating waveguides in borosilicate glass substrates using ultrafast laser inscription. The cross section of each waveguide was controlled using the well known multiscan fabrication technique, where the desired waveguide cross section is constructed by scanning the sample through the laser focus multiple times. In order to fabricate high-strength gratings, it was therefore necessary to precisely control and spatially synchronize the refractive index modulations imprinted in the material by each scan. The Bragg-grating waveguides were inscribed using a femtosecond fiber laser that was externally modulated using an acousto-optic modulator. The required precision in the laser modulation was thus achieved by triggering the acousto-optic modulator using a position sensitive trigger signal supplied by the substrate translation stages themselves. (C) 2012 Optical Society of America
引用
收藏
页码:491 / 493
页数:3
相关论文
共 11 条
[1]   Slit beam shaping method for femtosecond laser direct-write fabrication of symmetric waveguides in bulk glasses [J].
Ams, M ;
Marshall, GD ;
Spence, DJ ;
Withford, MJ .
OPTICS EXPRESS, 2005, 13 (15) :5676-5681
[2]   Writing waveguides in glass with a femtosecond laser [J].
Davis, KM ;
Miura, K ;
Sugimoto, N ;
Hirao, K .
OPTICS LETTERS, 1996, 21 (21) :1729-1731
[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]  
Nasu Y, 2005, OPT LETT, V30, P723, DOI 10.1364/OL.30.7.000723
[5]   Femtosecond writing of active optical waveguides with astigmatically shaped beams [J].
Osellame, R ;
Taccheo, S ;
Marangoni, M ;
Ramponi, R ;
Laporta, P ;
Polli, D ;
De Silvestri, S ;
Cerullo, G .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2003, 20 (07) :1559-1567
[6]  
Rodenas A., OPT EXPRESS, V19, P17820
[7]   Shaping ultrafast laser inscribed optical waveguides using a deformable mirror [J].
Thomson, R. R. ;
Bockelt, A. S. ;
Ramsay, E. ;
Beecher, S. ;
Greenaway, A. H. ;
Kar, A. K. ;
Reid, D. T. .
OPTICS EXPRESS, 2008, 16 (17) :12786-12793
[8]  
Thomson R. R., OPT EXPRESS, V19, P5698
[9]   Single-step writing of Bragg grating waveguides in fused silica with an externally modulated femtosecond fiber laser [J].
Zhang, Haibin ;
Eaton, Shane M. ;
Herman, Peter R. .
OPTICS LETTERS, 2007, 32 (17) :2559-2561
[10]   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