Subpicometer accuracy laser wavelength sensor using multiplexed Bragg gratings

Author

Zhao, Feng ; Sayano, Koichi ; Miller, Harold E., Jr. ; Karlovac, Neven

Author_Institution

Accuwave Corp., Santa Monica, CA, USA

Volume

9

Issue

11

fYear

1997

Firstpage

1493

Lastpage

1495

Abstract

Wavelength- and angle-multiplexed holographic Bragg gratings are used as a highly sensitive wavelength sensor. An absolute wavelength accuracy as high as 0.3 pm has been demonstrated with gratings recorded in an Fe-doped LiNbO/sub 3/ photorefractive crystals of dimension of 5/spl times/5/spl times/4 (mm/sup 3/). This technique provides a simple and accurate solution to laser wavelength measurement in applications such as wavelength division multiplexed (WDM) fiber-optic networks, precision interferometry, Doppler spectroscopy, and others.

Keywords

holographic gratings; light interferometry; measurement by laser beam; measurement errors; optical fibre networks; optical fibre testing; optical sensors; photorefractive materials; sensitivity; wavelength division multiplexing; 4 mm; 5 mm; Doppler spectroscopy; Fe-doped LiNbO/sub 3/ photorefractive crystals; LiNbO/sub 3/:Fe; WDM fiber-optic networks; absolute wavelength accuracy; angle-multiplexed holographic Bragg gratings; highly sensitive wavelength sensor; laser wavelength measurement; multiplexed Bragg gratings; precision interferometry; subpicometer accuracy laser wavelength sensor; wavelength division multiplexed; wavelength-multiplexed holographic Bragg gratings; Bragg gratings; Crystals; Fiber lasers; Holography; Interferometry; Optical fiber networks; Photorefractive materials; WDM networks; Wavelength division multiplexing; Wavelength measurement;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.634719

Filename

634719