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Howard J. Baker received the B.Sc.(Hons) degree in Physics and the Ph.D. degree in laser physics from Manchester University, U.K., in 1968 and 1973, respectively. As a Postdoctoral Fellow at Manchester University, he worked on pulsed iodine photo-dissociation lasers until 1980, when he became a Lecturer in Applied Physics at Hull University, Hull, U.K. Research was on mercury halide and TEA CO2 lasers and RF discharge excited gas lasers. In 1987, he moved to Heriot-Watt University, Edinburgh, U.K., to become Senior Lecturer associated with a new undergraduate course “Optoelectronics and Laser Engineering”. Research on the Physics and Engineering of lasers developed scalable, sealed-off CO2 lasers using RF discharge excitation of planar waveguide and array formats followed. In the mid-1990s, he developed similar power scaling techniques using diode-pumped solid-state waveguide lasers. As Professor of Power Photonics, he specialises in novel methods of micro-optics fabrication and the application of laser-produced optics for brightness enhancement in high power diode lasers systems for direct industrial use, or as pump units for fibre and solid-state lasers. Work on planar waveguide lasers continues, using ytterbium -doped material for pico-second pulse amplification.