STEP GAUGE MEASUREMENT USING HIGH-FREQUENCY REPETITIONS OF A MODE-LOCKED FIBER LASER

• Abstract:

  A high-frequency part of repetition frequency modes of mode-locked fiber laser is selected by a tandem Fabry–Pérot etalon. The 3-GHz repetition-modified laser is transmitted to a Michelson interferometer. The interference fringes generated have a temporal coherence pattern and can make positioning in space. The optical system of the interferometer is designed as double-path beams. A center between two beams is located at the position of a measuring probe of CMM. Using this design, we can apply the modelocked fiber laser to artifacts following contact method. The advantage of the contact method can measure variety-shape artifacts, i.e. step gauge etc, that non-contact method cannot be used.
• Keywords:

  mode-locked fiber laser, tandem Fabry–Pérot etalon, high-frequency repetition, step gauge, CMM
• Download:

  IMEKO-WC-2012-TC14-O19.pdf
• DOI:

  _unreg_wc-2012.TC14-O19

Event details: