Professor

Telephone
+44 (0)131 451 3081
Email
h.j.baker@hw.ac.uk
Address
Room G.04
Earl Mountbatten Building
Heriot-Watt University
Howard J. Baker
Selected publications
  1. I J Thomson, F J F Monjardin, H J Baker, et al., “Efficient Operation of a 400 W Diode Side-Pumped Yb:YAG Planar Waveguide Laser”, IEEE Journal of Quantum Electronics 47, 1336-1345 (2011)  
  2. K L Wlodarczyk, E Mendez, H J Baker et al., “Laser smoothing of binary gratings and multilevel etched structures in fused silica”, Applied Optics 49, 1997-2005 (2010)  
  3. N Trela, H J Baker, J J Wendland, et al., “Dual-axis beam correction for an array of single-mode diode laser emitters using a laser-written custom phase-plate”, Optics Express, 17, 23576-23581 (2009)  
  4. Sun Fei, H J Baker, A B Russell, J D Valera, D R Hall, “Pump uniformity and temperature profile measurements in a planar waveguide Nd : YAG laser by a beam deflection method”, IEEE Journal of Quantum Electronics 43, 669-675 (2007)  
  5. C J Moorhouse, F J Villarreal, H J Baker et al., “Laser drilling of copper foils for electronics applications”, IEEE Transactions on Components and Packaging Technologies, 30, 254-263 (2007)  
  6. Xu Jianqiu, I J Thomson,  J D R Valera, et al., “A planar waveguide Nd : YAG laser using active Q-switching of a hybrid unstable resonator”, IEEE Journal of Selected Topics in Quantum Electronics 13, 638-646 (2007)  
  7. K M Nowak , H J Baker,  Hall D R, et al., “Low-loss passive alignment of single-mode fibers in low-temperature cofired ceramics using CO2 laser fabricated U-grooves”, Applied Optics 45, 9168-9175 (2006)  
  8. E Mendez , K M Nowak, H J Baker, et al., “Localized CO2 laser damage repair of fused silica optics”, Applied Optics 45, 5358-5367 (2006)  
  9. G A J Markillie, H J Baker, F J Villarreal, et al., “Effect of vaporization and melt ejection on laser machining of silica glass micro-optical components”, Applied Optics 41, 5660-5667 (2002)  
  10. J R Lee; H J Baker; G J Friel, et al., “High-average-power Nd : YAG planar waveguide laser that is face pumped by 10 laser diode bars”, Optics Letters  27, 27524-526 (2002)  
  11. H J Baker, J R Lee; D R Hall, “Self-imaging and high-beam-quality operation in multi-mode planar waveguide optical amplifiers”, Optics Express 10, 297-302 (2002)    
  12. H J Baker, A A Chesworth, D P Millas, et al., “A planar waveguide Nd : YAG laser with a hybrid waveguide-unstable resonator”, Optics Communications 191, 125-131 (2001)
Biography

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.