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Optics Letters

Optics Letters


  • Vol. 36, Iss. 9 — May. 1, 2011
  • pp: 1629–1631

Proposal for photonic quantization with differential encoding using a phase modulator and delay-line interferometers

H. Chi, Z. Li, X. Zhang, S. Zheng, X. Jin, and J. P. Yao  »View Author Affiliations

Optics Letters, Vol. 36, Issue 9, pp. 1629-1631 (2011)

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A photonic quantization approach to implementing analog-to-digital conversion (ADC) in the optical domain with differential encoding employing a phase modulator and delay-line interferometers (DLIs) is proposed and demonstrated. In the proposed ADC system, the phase-modulated signal is sent to an array of DLIs that have identical time delay difference, but different phase shifts, which are employed to achieve quantization with differential encoding. A proof-of-concept experiment is performed. The quantization of a 10 GHz sinusoidal signal with a bit length of 4 is experimentally demonstrated.

© 2011 Optical Society of America

OCIS Codes
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(230.0250) Optical devices : Optoelectronics

ToC Category:
Optical Devices

Original Manuscript: February 14, 2011
Revised Manuscript: March 28, 2011
Manuscript Accepted: March 28, 2011
Published: April 27, 2011

H. Chi, Z. Li, X. Zhang, S. Zheng, X. Jin, and J. P. Yao, "Proposal for photonic quantization with differential encoding using a phase modulator and delay-line interferometers," Opt. Lett. 36, 1629-1631 (2011)

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