ScholarLens Back to search
2007•Optical InstrumentsRequires access

Lens design for multi-wavelength laser beam expander

Yujun Du

Open publisher page 0 citations

Abstract

Wide-aperture and highly collimated light beam is needed in Ladar and correction of spectrum apparatus.In this paper,one beam expander is design with beam aperture of 16mm and expander ratio of 20.By adjusting the interval between eyepiece and object lens,the beam expander can expand laser beam from 543.5nm to 850nm.By comparing the change of modulation transfer function of spectral imager with ideal collimated monochromatic light and with expanded and collimated beam by laser beam expander,it is illustrated that the beam expander is valid.

About this research paper

What this paper is about

Wide-aperture and highly collimated light beam is needed in Ladar and correction of spectrum apparatus.In this paper,one beam expander is design with beam aperture of 16mm and expander ratio of 20.By adjusting the interval between eyepiece and object lens,the beam expander can expand laser beam from 543.5nm to 850nm.By comparing the change of modulation transfer function of spectral imager with ideal collimated monochromatic light and with expanded and collimated beam by laser beam expander,it is illustrated that the beam expander is valid.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Wide-aperture and highly collimated light beam is needed in Ladar and correction of spectrum apparatus.In this paper,one beam expander is design with beam aperture of 16mm and expander ratio of 20.By adjusting the interval between eyepiece and object lens,the beam expander can expand laser beam from 543.5nm to 850nm.By comparing the change of modulation transfer function of spectral imager with ideal collimated monochromatic light and with expanded and collimated beam by laser beam expander,it is illustrated that the beam expander is valid.

Key concepts: Beam expander, Collimated light, Optics, Laser beam quality, Beam parameter product, Aperture (computer memory), Beam (structure), Materials science

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Lens design for multi-wavelength laser beam expander — Research Paper | ScholarLens