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Purely gain-coupled distributed feedback semiconductor lasers (1990)

Luo, Y. ; Nakano, Y. ; Tada, K. ; [et al.]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 56 (1990), S. 1620-1622

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: We propose a new distributed feedback (DFB) laser structure in which almost pure gain coupling can be embodied in principle, without sacrificing low threshold operation. An analysis of coupling coefficients has revealed the condition for canceling index-coupling component. Utilizing organometallic vapor phase epitaxy, we have fabricated GaAlAs/GaAs ridge waveguide distributed feedback lasers having this structure. Excellent single longitudinal mode oscillation independent of facet reflection has been obtained along with low threshold current. The single-mode spectrum has exhibited distinctive characters of purely gain-coupled DFB lasers.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.103144

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