A monolithic integrated component (10) comprises a plurality of sections (21, 22) including a section (21) constituting a laser having a cavity delimited by a partially reflecting reflector and at least one other section (22) adjacent said laser section (21). The partially reflecting reflector (11) is disposed between the laser section (21) and one of the adjacent sections (22) and is a Bragg reflector grating (11) that allows multimode operation of the laser (21).

 
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