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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 5 — Mar. 10, 2014
  • pp: 5614–5622

Nonlinear dynamics in integrated coupled DFB lasers with ultra-short delay

Dong Liu, Changzheng Sun, Bing Xiong, and Yi Luo  »View Author Affiliations

Optics Express, Vol. 22, Issue 5, pp. 5614-5622 (2014)

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We report rich nonlinear dynamics in integrated coupled lasers with ultra-short coupling delay. Mutually stable locking, period-1 oscillation, frequency locking, quasi-periodicity and chaos are observed experimentally. The dynamic behaviors are reproduced numerically by solving coupled delay differential equations that take the variation of both frequency detuning and coupling phase into account. Moreover, it is pointed out that the round-trip frequency is not involved in the above nonlinear dynamical behaviors. Instead, the relationship between the frequency detuning Δν and the relaxation oscillation frequency νr under mutual injection are found to be critical for the various observed dynamics in mutually coupled lasers with very short delay.

© 2014 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(140.1540) Lasers and laser optics : Chaos
(140.5960) Lasers and laser optics : Semiconductor lasers

ToC Category:
Lasers and Laser Optics

Original Manuscript: January 8, 2014
Revised Manuscript: February 19, 2014
Manuscript Accepted: February 24, 2014
Published: March 4, 2014

Dong Liu, Changzheng Sun, Bing Xiong, and Yi Luo, "Nonlinear dynamics in integrated coupled DFB lasers with ultra-short delay," Opt. Express 22, 5614-5622 (2014)

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