• Question: How much are lasers

    Asked by Fionaob to Padraic on 10 Feb 2015.
    • Photo: Padraic Morrissey

      Padraic Morrissey answered on 10 Feb 2015:

      Hey Fiona
      Because lasers are usually very small, you can make thousands of them at a time! On a recent project I was working, we designed about 19,000 lasers on chip that was 2 inches in diameter. It was expensive to make the chip, but when you have so many lasers then to sell/use the cost per laser is very small. The lasers used in CD/DVD players only cost a couple of cent each because they are made in HUGE quantities!

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