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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 28 — Dec. 31, 2012
  • pp: 29620–29625

A modified SAG technique for the fabrication of DWDM DFB laser arrays with highly uniform wavelength spacings

Can Zhang, Song Liang, Hongliang Zhu, Baojun Wang, and Wei Wang  »View Author Affiliations


Optics Express, Vol. 20, Issue 28, pp. 29620-29625 (2012)
http://dx.doi.org/10.1364/OE.20.029620


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Abstract

A modified selective area growth (SAG) technique, in which the effective index of only the upper separate confinement heterostructure (SCH) layer are modulated to obtain different emission wavelengths, is reported for the fabrication of dense wavelength division multiplexing (DWDM) multi-wavelength laser arrays (MWLAs). InP based 1.5 μm distributed feedback (DFB) laser arrays with 0.8 nm, 0.42 nm, and 0.19 nm channel separations are demonstrated, all showing highly uniform wavelength spacings. The standard deviation of the distribution of the wavelength residues with respect to the corresponding linear fitting values is 0.0672nm, which is a lot smaller than those of the MWLAs fabricated by other techniques including electron beam lithography. These results indicate that our SAG technique which needs only a simple procedure is promising for the fabrication of low cost DWDM MWLAs.

© 2012 OSA

OCIS Codes
(130.3130) Integrated optics : Integrated optics materials
(140.3290) Lasers and laser optics : Laser arrays
(230.3120) Optical devices : Integrated optics devices

ToC Category:
Integrated Optics

History
Original Manuscript: November 22, 2012
Revised Manuscript: December 7, 2012
Manuscript Accepted: December 10, 2012
Published: December 20, 2012

Citation
Can Zhang, Song Liang, Hongliang Zhu, Baojun Wang, and Wei Wang, "A modified SAG technique for the fabrication of DWDM DFB laser arrays with highly uniform wavelength spacings," Opt. Express 20, 29620-29625 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-28-29620


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