Fundamental lateral-mode operation in broad-area lasers having built-in lenslike refractive index distributions

High power fundamental lateral-mode operation is achieved in an (AlGa)As broad-area laser diode. This diode has built-in lens-like refractive index distributions in the stripe. These distributions effectively suppress higher order lateral-mode generation by expanding the laser beam in the direction...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 28; no. 6; pp. L1003 - L1005
Main Authors NAKATSUKA, S, TATSUNO, K
Format Journal Article
LanguageEnglish
Published Tokyo Japanese journal of applied physics 01.06.1989
Subjects
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Lasers
Optics
Physics
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Summary:High power fundamental lateral-mode operation is achieved in an (AlGa)As broad-area laser diode. This diode has built-in lens-like refractive index distributions in the stripe. These distributions effectively suppress higher order lateral-mode generation by expanding the laser beam in the direction parallel to the junction. As a result, fundamental lateral-mode operation of up to 80 mW for CW operation is attained with this laser.
ISSN:0021-4922
1347-4065
DOI:10.1143/jjap.28.l1003