Abstract

We propose a novel approach to designing an optical filter with a flat-top and ultranarrow transmission band by using a sampled fiber Bragg grating (SFBG) having multiple equivalent phase shifts (EPSs). In the proposed approach, multiple EPSs are fabricated by adjusting several sampling periods of the SFBG. The obtained multiple EPSs are then arranged properly to get a flat-top transmission band in the narrow 1st reflection band of the SFBG, leading to the generation of a flat and ultranarrow transmission band. Filters with two or five EPSs are designed by simulation and experiment, with low ripples and ultranarrow 1dB bandwidths observed in transmission bands.

© 2009 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Identical-dual-bandpass sampled fiber Bragg grating and its application to ultranarrow filters

Xueming Liu, Aoxiang Lin, Guoyong Sun, Dae Seung Moon, Dusun Hwang, and Youngjoo Chung
Appl. Opt. 47(30) 5637-5643 (2008)

Bandpass filters based on phase-shifted photonic crystal waveguide gratings

Chao Chen, Xuechun Li, Hanhui Li, Kun Xu, Jian Wu, and Jintong Lin
Opt. Express 15(18) 11278-11284 (2007)

Cascaded chirped narrow bandpass filter with flat-top based on two-dimensional photonic crystals

Yuyang Zhuang, Heming Chen, and Ke Ji
Appl. Opt. 56(14) 4185-4190 (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 (4)

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 (3)

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