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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 9, Iss. 8 — Aug. 1, 1984
  • pp: 330–332

Optimum design of 1.55-μm double heterostructures and ridge-waveguide lasers

J. E. Bowers and D. P. Wilt  »View Author Affiliations


Optics Letters, Vol. 9, Issue 8, pp. 330-332 (1984)
http://dx.doi.org/10.1364/OL.9.000330


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Abstract

The dependence of threshold current density and lateral-index difference for transverse guiding in a 1.55-μm InGaAsP/InP ridge-waveguide laser on the number of cladding layers, their thicknesses, and their compositions is presented. It is found that two cladding layers of intermediate band-gap InGaAsP (λg = 1.2−1.3 μm) are desirable to reduce the threshold current density and to reduce its sensitivity to layer-thickness variations. The use of active- and cladding-layer thicknesses between 0.1 and 0.15 μm minimizes the threshold current density and its sensitivity to layer-thickness variations. This regime of layer thicknesses results in relatively strong lateral-index guiding (Δneff ≈ 0.06) in the 1.55-μm ridge-waveguide laser structure.

© 1984 Optical Society of America

History
Original Manuscript: April 3, 1984
Manuscript Accepted: May 29, 1984
Published: August 1, 1984

Citation
J. E. Bowers and D. P. Wilt, "Optimum design of 1.55-μm double heterostructures and ridge-waveguide lasers," Opt. Lett. 9, 330-332 (1984)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-9-8-330

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