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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 4 — Feb. 24, 2014
  • pp: 4692–4698

Ultra-compact 32-channel drop filter with 100 GHz spacing

Yasushi Takahashi, Takashi Asano, Daiki Yamashita, and Susumu Noda  »View Author Affiliations


Optics Express, Vol. 22, Issue 4, pp. 4692-4698 (2014)
http://dx.doi.org/10.1364/OE.22.004692


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Abstract

We demonstrated 32-channel drop filters with 100 GHz spacing consisting of arrayed nanocavities and a waveguide in a photonic crystal silicon slab. Changing the lattice constant of the nanocavities on the subnanometer scale successfully controlled the drop wavelengths at 100 GHz spacing in the wavelength range between 1510 and 1550 nm. The device size was as small as 15 μm × 270 μm, and the variation in drop wavelengths was less than 0.3 nm in terms of standard deviation. We also present a movie showing the operation of the drop filter, demonstrating that the arrayed nanocavities have the potential for developing ultracompact 100 GHz spaced filters in a dense wavelength division multiplexing system.

© 2014 Optical Society of America

OCIS Codes
(060.4230) Fiber optics and optical communications : Multiplexing
(130.3120) Integrated optics : Integrated optics devices
(250.3140) Optoelectronics : Integrated optoelectronic circuits
(230.5298) Optical devices : Photonic crystals

ToC Category:
Integrated Optics

History
Original Manuscript: January 13, 2014
Revised Manuscript: February 13, 2014
Manuscript Accepted: February 13, 2014
Published: February 20, 2014

Citation
Yasushi Takahashi, Takashi Asano, Daiki Yamashita, and Susumu Noda, "Ultra-compact 32-channel drop filter with 100 GHz spacing," Opt. Express 22, 4692-4698 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-4-4692


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