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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 5 — Mar. 1, 2010
  • pp: 4748–4757

Optics InfoBase > Optics Express > Volume 18 > Issue 5 > Page 4748

Generation of an optical frequency comb with a Gaussian spectrum using a linear time-to-space mapping system

Shintaro Hisatake, Keiji Tada, and Tadao Nagatsuma  »View Author Affiliations


Optics Express, Vol. 18, Issue 5, pp. 4748-4757 (2010)
http://dx.doi.org/10.1364/OE.18.004748


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Abstract

We demonstrate the generation of an optical frequency comb (OFC) with a Gaussian spectrum using a continuous-wave (CW) laser, based on spatial convolution of a slit and a periodically moving optical beam spot in a linear time-to-space mapping system. A CW optical beam is linearly mapped to a spatial signal using two sinusoidal electro-optic (EO) deflections and an OFC is extracted by inserting a narrow spatial slit in the Fourier-transform plane of a second EO deflector (EOD). The spectral shape of the OFC corresponds to the spatial beam profile in the near-field region of the second EOD, which can be manipulated by a spatial filter without spectral dispersers. In a proof-of-concept experiment, a 16.25-GHz-spaced, 240-GHz-wide Gaussian-envelope OFC (corresponding to 1.8 ps Gaussian pulse generation) was demonstrated.

© 2010 Optical Society of America

OCIS Codes
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(230.2090) Optical devices : Electro-optical devices
(320.5540) Ultrafast optics : Pulse shaping
(070.7145) Fourier optics and signal processing : Ultrafast processing

ToC Category:
Ultrafast Optics

History
Original Manuscript: December 21, 2009
Revised Manuscript: January 30, 2010
Manuscript Accepted: February 7, 2010
Published: February 22, 2010

Citation
Shintaro Hisatake, Keiji Tada, and Tadao Nagatsuma, "Generation of an optical frequency comb with a Gaussian spectrum using a linear time-to-space mapping system," Opt. Express 18, 4748-4757 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-5-4748


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References

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