Abstract

A novel technique to interrogate a long-period grating (LPG) using a mechanically scannable arrayed waveguide grating (AWG) is proposed. This technique is implemented based on space-to-wavelength mapping by mechanically scanning the input light beam along the input coupler facet of an AWG. By employing a sampled chirped fiber Bragg grating with multiple peaks as a reference, the central wavelength of the LPG is measured. An interrogation system with a resolution of 10pm at a speed of 10Hz is demonstrated. Furthermore, the technique proposed can potentially offer subpicometer resolution at a speed of 500Hz.

© 2008 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Interrogating fiber Bragg grating sensors by thermally scanning a demultiplexer based on arrayed waveguide gratings

G. Z. Xiao, P. Zhao, F. G. Sun, Z. G. Lu, Zhiyi Zhang, and C. P. Grover
Opt. Lett. 29(19) 2222-2224 (2004)

Arrayed waveguide grating interrogator for fiber Bragg grating sensors: measurement and simulation

Jan Koch, Martin Angelmahr, and Wolfgang Schade
Appl. Opt. 51(31) 7718-7723 (2012)

Chip-scale demonstration of hybrid III–V/silicon photonic integration for an FBG interrogator

Hongqiang Li, Xiangdong Ma, Beibei Cui, Youxi Wang, Cheng Zhang, Junfa Zhao, Zanyun Zhang, Chunxiao Tang, and Enbang Li
Optica 4(7) 692-700 (2017)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription