TWO-DIMENSIONAL WAVELENGTH-BEAM-COMBINING OF LASERS USING FIRST-ORDER GRATING STACK
摘要
A method and apparatus for two-dimensional wavelength beam combining of laser sources. In one example, an external cavity multi- wavelength laser includes an array of laser emitters each producing an optical beam having a specified wavelength, a grating stack comprising a plurality of first-order diffraction gratings arranged linearly in a first dimension, and a dispersive element. The laser further includes a cylindrical telescope that images the optical beams from the array of laser emitters onto the grating stack. A first cylindrical transform lens spatially overlaps the optical beams in a second dimension forming a first region of overlap at the grating stack. A second cylindrical transform lens spatially overlaps the optical beams from the grating stack in the first dimension forming a second region of overlap at the dispersive element. The dispersive element transmits a multi-wavelength output beam comprising the spatially overlapped optical beams from the array of laser emitters.
申请公布号
WO2011112367(A1)
申请公布日期
2011.09.15
申请号
WO2011US26246
申请日期
2011.02.25
申请人
MASSACHUSETTS INSTITUTE OF TECHNOLOGY;CHANN, BIEN;FAN, TSO, YEE;SANCHEZ-RUBIO, ANTONIO