LASER LIGHT GENERATOR

• Main Authors: NUMATA MASAYUKI, WADA YOSHIO, SHIBATA SHINSUKE, AZUMA YASUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 07.09.2017
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES USING STIMULATED EMISSION; ELECTRICITY

PROBLEM TO BE SOLVED: To provide a laser light generator with a high degree of freedom in regard to its oscillation condition.SOLUTION: A laser light generator comprises: a light source part 2 having a surface-emitting laser element 21; a light amplifier part 3 for amplifying laser light L output by the light source part 2 to provide an output; and a control part 9 for controlling a light-emission face of the light source part 2. The surface-emitting laser element 21 has: an active layer 212; a pair of reflection layers 211 and 213 formed to sandwich the active layer 212 therebetween; and a substrate 210 having the active layer 212 and the pair of reflection layers 211 and 213 formed on a principal face 210a thereof. The substrate 210 is a GaAs substrate, the principal face 210a of which is inclined by a predetermined angle from a (100) plane. The light amplifier part 3 makes a combination of the laser light L incident from the light-emission face to output a laser light beam.SELECTED DRAWING: Figure 8 【課題】発振条件の自由度が高いレーザー光発生装置の提供。【解決手段】面発光レーザー素子２１を有する光源部２と、光源部２の射出するレーザー光Ｌを増幅して射出する光増幅部３と、光源部２の発光面を制御するための制御部９と、を有し、面発光レーザー素子２１は、活性層２１２と、活性層２１２を挟んで形成された一対の反射層２１１、２１３と、活性層２１２と反射層２１１、２１３とが主面２１０ａ上に形成された基板２１０と、を有し、基板２１０は、基板２１０の主面２１０ａが（１００）面から所定の角度で傾斜したＧａＡｓ基板であり、光増幅部３は、前記発光面から入射するレーザー光Ｌを合成してレーザー光束として射出するレーザー光発生装置。【選択図】図８