OSA's Digital Library

Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 8 — Apr. 18, 2005
  • pp: 3068–3078

Nonreciprocal waveguide Bragg gratings

Mykola Kulishov, Jacques M. Laniel, Nicolas Bélanger, José Azaña, and David V. Plant  »View Author Affiliations


Optics Express, Vol. 13, Issue 8, pp. 3068-3078 (2005)
http://dx.doi.org/10.1364/OPEX.13.003068


View Full Text Article

Enhanced HTML    Acrobat PDF (202 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

The use of a complex short-period (Bragg) grating which combines matched periodic modulations of refractive index and loss/gain allows asymmetrical mode coupling within a contra-directional waveguide coupler. Such a complex Bragg grating exhibits a different behavior (e.g. in terms of the reflection and transmission spectra) when probed from opposite ends. More specifically, the grating has a single reflection peak when used from one end, but it is transparent (zero reflection) when used from the opposite end. In this paper, we conduct a systematic analytical and numerical analysis of this new class of Bragg gratings. The spectral performance of these, so-called nonreciprocal gratings, is first investigated in detail and the influence of device parameters on the transmission spectra of these devices is also analyzed. Our studies reveal that in addition to the nonreciprocal behavior, a nonreciprocal Bragg grating exhibits a strong amplification at the resonance wavelength (even with zero net-gain level in the waveguide) while simultaneously providing higher wavelength selectivity than the equivalent index Bragg grating. However, it is also shown that in order to achieve nonreciprocity in the device, a very careful adjustment of the parameters corresponding to the index and gain/loss gratings is required.

© 2005 Optical Society of America

OCIS Codes
(230.1950) Optical devices : Diffraction gratings
(230.3120) Optical devices : Integrated optics devices
(250.4480) Optoelectronics : Optical amplifiers

ToC Category:
Research Papers

History
Original Manuscript: February 22, 2005
Revised Manuscript: April 6, 2005
Published: April 18, 2005

Citation
Mykola Kulishov, Jacques Laniel, Nicolas Bélanger, José Azaña, and David Plant, "Nonreciprocal waveguide Bragg gratings," Opt. Express 13, 3068-3078 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-8-3068


Sort:  Journal  |  Reset  

References

  1. X. Daxhelet, M. Kulishov, �??Theory and practice of long-period gratings: when a loss becomes a gain,�?? Opt. Lett. 28, 686-688 (2003). [CrossRef] [PubMed]
  2. M. Kulishov, V. Grubsky, J. Schwartz, X. Daxhelet, D.V. Plant, �??Tunable waveguide transmission gratings based on active gain control,�?? IEEE J. Quantum Electron. 40, 1715-1724 (2004). [CrossRef]
  3. L. Poladian, �??Rresonance mode expansions and exact solutions for nonuniform gratings,�?? Physical Review E 54, 2963-2975 (1996). [CrossRef]
  4. M. Greenberg, M. Orenstein, �??Irreversible coupling by use of dissipative optics,�?? Opt. Lett. 29, 451-453 (2004). [CrossRef] [PubMed]
  5. M. Greenberg, M. Orenstein, �??Unidirectional complex gratings assisted couplers,�?? Opt. Express 12, 4013-4018 (2004), <a href= "http://www.opticsexpress.org/abstract.cfm?URI=OPEX-12-17-4013.">http://www.opticsexpress.org/abstract.cfm?URI=OPEX-12-17-4013.</a> [CrossRef] [PubMed]
  6. R. Kashyap, Fiber Bragg Gratings (SanDiego, CA: Academic, 1999, ch.4).
  7. T. Erdogan, �??Fiber grating spectra,�?? J. Lightwave Technol. 15, 1277-1294 (1997). [CrossRef]
  8. H. Kogelnik, C.V. Shank, �??Coupled mode theory of distributed feedback lasers,�?? J.Appl.Phys. 43, 2327-2335 (1972). [CrossRef]
  9. D.R. Zimmerman, L.H. Spiekman, �??Amplifiers for the masses: EDFA, EDWA, and SOA Amplets for metro and access applications,�?? IEEE J. Lightwave Technol. 22, 63-71 (2004). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited