发明名称 |
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 |
US8614853(B2) |
申请公布日期 |
2013.12.24 |
申请号 |
US20100720186 |
申请日期 |
2010.03.09 |
申请人 |
CHANN BIEN;FAN TSO YEE;SANCHEZ-RUBIO ANTONIO;MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
发明人 |
CHANN BIEN;FAN TSO YEE;SANCHEZ-RUBIO ANTONIO |
分类号 |
G02B27/10 |
主分类号 |
G02B27/10 |
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