Patent ID: 7602832

Claim:
A surface emitting laser comprising: a heat sink; a laser chip having a gain structure to emit light at a predetermined wavelength and disposed on a central portion of a top surface of the heat sink; an external mirror spaced apart from the laser chip at a predetermined distance to transmit a portion of the light emitted from the laser chip to outside the surface emitting laser and to reflect the remaining portion of the light to the laser chip; a pump laser disposed on one side of the top surface of the heat sink to emit pump light in a horizontal direction for activating the laser chip; and a reflection mirror disposed on the other side of the top surface of the heat sink opposite to the pump laser to reflect the pump light emitted from the pump laser to the laser chip, wherein: the pump laser is configured to emit the pump light in the horizontal direction to bypass the laser chip disposed on the central portion of the top surface of the heat sink; the reflection mirror is configured to reflect the pump light bypassing the laser chip toward the laser chip at an angle divergent from the horizontal direction to activate the laser chip; and the laser chip is configured to emit the light at the predetermined wavelength in a direction substantially orthogonal to the horizontal direction to the external mirror.