Edge-emitting laser and manufacturing method thereof

The invention discloses an edge-emitting laser, comprising a laser unit and a detector unit. Light is emitted to the front end surface of the detector unit through the rear end surface of the laser unit, the rear end surface of the laser unit is not parallel to the front end surface of the detector unit, a plane in which the rear end surface and the front end surface are located forms an irregular polygonal corrosion cavity, angles with specific rules are formed between the cavity surfaces of the corrosion cavity and enable the light reflected from the detector unit to attenuate to a preset threshold, and thus the power of the light which is emitted from the front end surface of the detector unit to enter an active region of the laser unit can be reduced, the reflection effect of corrosive regions can be reduced to a maximum extent and even eliminated, and the decrease of signal transmission quality caused by light field disturbance can be avoided; and meanwhile, the invention also discloses a manufacturing m