Development of ultra-stable lasers for metrology, spectroscopy and imaging

Pound-Drever-Hall (PDH) locking, developed into a practical technique by our researchers, is the ubiquitous method for the precise frequency control of stable laser systems.

This control is central to laser products from companies such as Toptica and Newport, and has an estimated global annual market in excess of £5M. The PDH stabilisation technique is essential for the operation of the time standards maintained in all of the world’s Governmental Metrological Standards Laboratories (e.g. NPL, NIST, BIPM) and finds applications in inspection tools in the semiconductor industry and deep UV lasers for UV-Raman spectroscopy.

Related research

  • Institute for Gravitational Research

First published: 3 December 2013