OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijin de Sterke
  • Vol. 15, Iss. 9 — Apr. 30, 2007
  • pp: 5543–5549

Simultaneous optical digital half-subtraction and -addition using SOAs and a PPLN waveguide

John E. McGeehan, Saurabh Kumar, and Alan E. Willner  »View Author Affiliations

Optics Express, Vol. 15, Issue 9, pp. 5543-5549 (2007)

View Full Text Article

Enhanced HTML    Acrobat PDF (134 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We demonstrate an optical half-subtracter and half-adder module that performs simultaneous bit-wise subtraction and addition of two 5 Gbit/s RZ data streams. We generate Borrow (/X∙Y) and Difference/Sum (X⊕Y, or XOR) outputs using cross-gain modulation (XGM) in two parallel SOAs. Taking advantage of the gain saturation inherent to SOAs, we generate two signals, /X∙Y, and X∙/Y, and combine them using a passive optical coupler to generate the XOR Difference/Sum output. We use difference-frequency-generation-based λ-conversion in a PPLN waveguide to generate the Carry (X∙Y) output. The PPLN waveguide allows bit-synchronous wavelength shifting, is wide-bandwidth, and offers no intrinsic chirp. Our module uses three active elements to perform simultaneous half-subtraction and addition, and carries a maximum power penalty of 1.0 dB.

© 2007 Optical Society of America

OCIS Codes
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(070.4340) Fourier optics and signal processing : Nonlinear optical signal processing

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: January 26, 2007
Revised Manuscript: April 19, 2007
Manuscript Accepted: April 20, 2007
Published: April 23, 2007

John E. McGeehan, Saurabh Kumar, and Alan E. Willner, "Simultaneous optical digital half-subtraction and -addition using SOAs and a PPLN waveguide," Opt. Express 15, 5543-5549 (2007)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. R. C. Alferness, "The all-optical network," Int’l Conf. on Comm.Technol. 1, 14-15 (2000).
  2. C. J. K. Richardson, P. Petruzzi, L. Calhoun, N. Moulton, and J. Goldhar, "Optimization of 100 Gbit/s correlation in a segmented semiconductor optical amplifier for all-optical pattern recognition," Conf. on Lasers and Electro-Optics (CLEO) 1, 376 (2002).
  3. O. Boyraz, Y. Han, A. Naruzzaman, and B. Jalali, "Time stretch optical header recognition," 2003 Annual Meeting of the IEEE Lasers and Electro-Optics Society 2, 543-544 (2003). [CrossRef]
  4. W. Hung, K. Chan, L. K. Chen, C. K. Chan, and F. Tong, "A routing loop control scheme in optical layer for optical packet networks," Conf. on Optical Fiber Communication (OFC) 2002, 770-771 (2002).
  5. N. Elfaramawy and A. Awad, "All-optical logic circuits based on the non-linear properties of the SOA," Ninth International Symposium on Computers and Communications 2004 1, 270-275 (2004).
  6. D. Tsoikos,  et al "10 Gb/s all-optical half-adder with interferometric SOA gates," IEEE Photon. Technol. Lett. 16, 284-286 (2004). [CrossRef]
  7. J. H. Kim, Y. T. Byun, Y. M. Jhon, S. Lee, D. H. Woo, and S. H. Kim, "All-optical half adder using semiconductor optical amplifier based devices," Opt. Commun. 218, 345-349 (2003). [CrossRef]
  8. B. Tian, W. van Etten, and W. Beuwer, "Ultrafast all-optical shift register and its perspective application for optical fast packet switching," IEEE J. Sel. Top. Quantum Electron. 8, 722-728 (2002). [CrossRef]
  9. J. E. McGeehan, S. Kumar, D. Gurkan, S. M. R. Motaghian Nezam, A. E. Willner, K. R. Parameswaran, M. M. Fejer, J. Bannister, and J. D. Touch, "All-optical decrementing of a packet’s time-to-live (TTL) field and subsequent dropping of a zero-TTL packet," IEEE J. Lightwave Technol. 21, 2746- 2752 (2003). [CrossRef]
  10. K. Chan, C.-K. Chan, L. K. Chen, and F. Tong, "Demonstration of 20 Gb/s all-optical XOR gate by four-wave mixing in semiconductor optical amplifier with RZ-DPSK modulated inputs," IEEE Photon. Technol. Lett. 16, 897-899 (2004). [CrossRef]
  11. P. Parolari, L. Marazzi, M. Connen, and M. Martinelli, "SOA-based all-optical threshold," Conf. on Lasers and Electro-Optics (CLEO) 2000, paper CWK29, 309-310 (2000).
  12. K. R. Parameswaran, J. R. Kurz, R. V. Roussev, and M. M. Fejer, "Observation of 99% pump depletion in single pass SHG in a PPLN waveguide," Conf. on Lasers and Electro-Optics, paper CFB3, 549 (2001).
  13. R. Inohara, K. Nishimura, M. Tsurusawa, and M. Usami, "Experimental analysis of cross-phase modulation and cross-gain modulation in SOA-injecting CW assist light," IEEE Photon. Technol. Lett. 15, 1192-1194 (2003). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited