OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 3 — Jan. 20, 2007
  • pp: 375–378

All-fiber dynamic gain equalizer based on a twisted long-period grating written by high-frequency CO2 laser pulses

T. Zhu, Y. J. Rao, and J. L. Wang  »View Author Affiliations


Applied Optics, Vol. 46, Issue 3, pp. 375-378 (2007)
http://dx.doi.org/10.1364/AO.46.000375


View Full Text Article

Enhanced HTML    Acrobat PDF (528 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

A novel dynamic gain equalizer for flattening Er-doped fiber amplifiers based on a twisted long-period fiber grating (LPFG) induced by high-frequency CO 2 laser pulses isreported for the first time to our knowledge. Experimental results show that its transverse-load sensitivity is up to 0.34 dB / ( g · mm 1 ) , while the twist ratio of the twisted LPFG is 20 rad / m , which is 7 times higher than that of a torsion-free LPFG. In addition, it is found that the strong orientation dependence of the transverse-load sensitivity of the torsion-free LPFGreported previously has been weakened considerably. Therefore such a dynamic gain equalizer based on the unique transverse-load characteristics of the twisted LPFG provides a much larger adjustable range and makes packaging of the gain equalizer much easier. A demonstration has been carried out to flatten an Er-doped fiber amplifier to ± 0.5 dB over a 32 nm bandwidth.

© 2007 Optical Society of America

OCIS Codes
(120.2440) Instrumentation, measurement, and metrology : Filters
(230.1950) Optical devices : Diffraction gratings

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: May 15, 2006
Manuscript Accepted: July 7, 2006
Published: January 4, 2007

Citation
T. Zhu, Y. J. Rao, and J. L. Wang, "All-fiber dynamic gain equalizer based on a twisted long-period grating written by high-frequency CO2 laser pulses," Appl. Opt. 46, 375-378 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-3-375

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited