Patent ID: 8442087
Filing Date: 2013-05-14
Classification: H01L,H01S

Abstract:
1. A mounting member mounted with a first semiconductor laser element and a second semiconductor laser element, the second semiconductor laser element being a monolithic multi-wavelength semiconductor laser element, comprising: three or more electrodes respectively having element mounting portions arranged in a first direction; and a light receiving element disposed in a second direction, which intersects with the first direction, with respect to the element mounting portions, wherein a length in the second direction of at least one of the element mounting portions disposed at both ends in the first direction among the three or more element mounting portions is smaller than a length in the second direction of an element mounting portion disposed at an inner position in the first direction among the three or more element mounting portions, the electrode having the element mounting portion disposed at the inner position includes a wiring portion which is connected to the element mounting portion disposed at the inner position and which extends outward in the first direction further than the at least one of the element mounting portions disposed at both ends, wherein the length in the second direction of one of the element mounting portions disposed at both ends is smaller than the length in the second direction of the element mounting portion disposed at the inner position, and the wiring portion is formed to extend outward in the first direction further than the one of the element mounting portions disposed at both ends and pass between the one of the element mounting portions disposed at both ends and the light receiving element, wherein a light receiving element electrode is formed on a predetermined area of the light receiving element to output a monitor current to an outside, the light receiving element electrode and the wiring portion are disposed on opposite sides of the element mounting portion disposed at the inner position in the first direction, the light receiving element is formed so as to extend outward in the first direction further than the element mounting portions disposed at both ends, and the light receiving element electrode is formed so as to extend in the second direction to beside the element mounting portions in the first direction.