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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 16 — Jul. 30, 2012
  • pp: 17894–17903

Femtosecond laser writing of a flat-top interleaver via cascaded Mach-Zehnder interferometers

Jason C. Ng, Chengbo Li, Peter R. Herman, and Li Qian  »View Author Affiliations


Optics Express, Vol. 20, Issue 16, pp. 17894-17903 (2012)
http://dx.doi.org/10.1364/OE.20.017894


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Abstract

A flat-top interleaver consisting of cascaded Mach-Zehnder interferometers (MZIs) was fabricated in bulk glass by femtosecond laser direct writing. Spectral contrast ratios of greater than 15 dB were demonstrated over a 30 nm bandwidth for 3 nm channel spacing. The observed spectral response agreed well with a standard transfer matrix model generated from responses of individual optical components, demonstrating the possibility for multi-component optical design as well as sufficient process accuracy and fabrication consistency for femtosecond laser writing of advanced optical circuits in three dimensions.

© 2012 OSA

OCIS Codes
(320.2250) Ultrafast optics : Femtosecond phenomena
(350.2460) Other areas of optics : Filters, interference

ToC Category:
Laser Microfabrication

History
Original Manuscript: June 5, 2012
Revised Manuscript: July 13, 2012
Manuscript Accepted: July 13, 2012
Published: July 20, 2012

Citation
Jason C. Ng, Chengbo Li, Peter R. Herman, and Li Qian, "Femtosecond laser writing of a flat-top interleaver via cascaded Mach-Zehnder interferometers," Opt. Express 20, 17894-17903 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-16-17894


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