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Optics Letters

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  • Vol. 36, Iss. 7 — Apr. 1, 2011
  • pp: 1044–1046

Correction for phase-shift deviation in a complex Fourier-transform integrated-optic spatial heterodyne spectrometer with an active phase-shift scheme

Kazumasa Takada, Hirotaka Aoyagi, and Katsunari Okamoto  »View Author Affiliations


Optics Letters, Vol. 36, Issue 7, pp. 1044-1046 (2011)
http://dx.doi.org/10.1364/OL.36.001044


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Abstract

We report that a spectrum can be retrieved with a planar waveguide spatial heterodyne spectrometer (SHS) incorporating an active phase-shift scheme, where the phase shifts are distributed around π/2. This was confirmed experimentally with an SHS that had 32 interleaved Mach–Zehnder interferometers and whose free spectral range was 625 GHz. The phase shifts ranged from 0.71 to 2.2 rad against the target of π/2 rad.

© 2011 Optical Society of America

OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms

ToC Category:
Optical Devices

History
Original Manuscript: January 14, 2011
Revised Manuscript: February 17, 2011
Manuscript Accepted: February 22, 2011
Published: March 16, 2011

Citation
Kazumasa Takada, Hirotaka Aoyagi, and Katsunari Okamoto, "Correction for phase-shift deviation in a complex Fourier-transform integrated-optic spatial heterodyne spectrometer with an active phase-shift scheme," Opt. Lett. 36, 1044-1046 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-7-1044


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References

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