All-fiber bandwidth-tunable band-rejection filter based on a composite grating induced by CO_2 laser pulses | Zendy

Tao Zhu | Zendy; Cuihua Shi | Zendy; Yunjiang Rao | Zendy; Lingna Shi | Zendy; Kin Seng Chiang | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

All-fiber bandwidth-tunable band-rejection filter based on a composite grating induced by CO_2 laser pulses

Author(s) -

Tao Zhu,

Cuihua Shi,

Yunjiang Rao,

Lingna Shi,

Kin Seng Chiang

Publication year - 2009

Publication title -

optics express

Language(s) - Czech

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.17.016750

Subject(s) - materials science , optics , fiber bragg grating , grating , fiber laser , long period fiber grating , bandwidth (computing) , polarization maintaining optical fiber , optoelectronics , optical fiber , fiber optic sensor , telecommunications , physics , wavelength , computer science

We propose an all-fiber band-rejection filter with a tunable bandwidth, which is realized by putting a normal long-period fiber grating in series with a rotary long-period fiber grating written in a twisted single-mode fiber by CO(2) laser pulses. Bandwidth tuning is achieved by applying torsion to the composite grating. Our experimental filter shows a bandwidth tuning of approximately 16.3 nm at a rejection level of approximately 15 dB and a polarization-dependent loss lower than approximately 0.9 dB.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research