| 摘要 |
PROBLEM TO BE SOLVED: To minimize or avoid the deterioration of the (front) end section of a laser diode, and to improve the long-term stability of the diode as compared to prior art designs. SOLUTION: This laser diode is constituted as a ridge waveguide laser diode containing a semiconductor body, an active region containing a ridge (4), front and back facets respectively provided with mirrors (10 and 12), and a metallized layer (6) formed on the main body and ridge (4) for injecting carriers into the active region. This laser diode is provided with means (11 and 13), which limit the carrier injection and are formed, by providing unpumped portions in the vicinities of the front facet and/or back facet.
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