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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 6 — Mar. 17, 2008
  • pp: 3896–3911

Wavelength switchable semiconductor laser using half-wave V-coupled cavities

Jian-Jun He and Dekun Liu  »View Author Affiliations


Optics Express, Vol. 16, Issue 6, pp. 3896-3911 (2008)
http://dx.doi.org/10.1364/OE.16.003896


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Abstract

A new semiconductor laser structure with digitally switchable wavelength is proposed. The device comprises two coupled c.avities with different optical path lengths, which form V-shaped branches with a reflective 2 × 2 half-wave optical coupler at the closed end. The reflective 2 × 2 coupler is designed to have a π-phase difference between cross-coupling and self-coupling so as to produce synchronous power transfer functions. High single-mode selectivity is achieved by optimizing the coupling coefficient. The switchable wavelength range is greatly increased by using Vernier effect. Using deep-etched trenches as partial reflectors, additional waveguide branch structures are used outside the laser cavities to form a complete Mach-Zehnder interferometer, allowing space switching, variable attenuation, or high speed modulation to be realized simultaneously. Detailed design principle and numerical results are presented.

© 2008 Optical Society of America

OCIS Codes
(140.5960) Lasers and laser optics : Semiconductor lasers
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 27, 2008
Revised Manuscript: March 4, 2008
Manuscript Accepted: March 5, 2008
Published: March 10, 2008

Citation
Jian-Jun He and Dekun Liu, "Wavelength switchable semiconductor laser using half-wave V-coupled cavities," Opt. Express 16, 3896-3911 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-6-3896


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