Formation of pure helical beams from a Gaussian beam using spiral phase elements (SPE) was studied. Beam quality factor M2 for helical beams, which were obtained by passing Gaussian and shifted-Gaussian beams through different SPEs, was calculated. Results indicated that the M2 values for incident shifted-Gaussian beams were nearly identical to pure modes. Large values of M2 were obtained for incident Gaussian beams.
|Number of pages||2|
|State||Published - 1 Jan 2002|
|Event||Conference on Lasers and Electro-Optics (CLEO 2002) - Long Beach, CA, United States|
Duration: 19 May 2002 → 24 May 2002
|Conference||Conference on Lasers and Electro-Optics (CLEO 2002)|
|City||Long Beach, CA|
|Period||19/05/02 → 24/05/02|