1. Generation of r.f. and microwave signals from low-frequency square-wave modulation of laser diode

   • D. E. N. Davis
   • G. Economou
   • K. Arora

   Letters Pages: 93 - 96

2. Hydrogen generation by materials related to submarine optical cables

   • C. Lasne
   • J. -Y. Barraud
   • R. Jocteur

   Letters Pages: 97 - 101

3. Optimal designing of grating couplers for diffused waveguides in electro-optical crystals

   • A. A. Spikhal'skii

   OriginalPaper Pages: 103 - 114

4. Self-diffraction of CO₂-laser radiation in SF₆

   • L. T. Bolotskikh
   • V. G. Popkov
   • V. M. Shalaev

   OriginalPaper Pages: 115 - 121

5. Diffraction characteristics of planar corrugated waveguides

   • G. A. Golubenko
   • A. S. Svakhin
   • L. Mashev

   OriginalPaper Pages: 123 - 128

6. Coherent forward four-wave mixing of ultrashort radiation pulses in a resonant medium

   • P. A. Apanasevich
   • A. A. Afanas'ev
   • B. A. Samson

   OriginalPaper Pages: 129 - 135

7. Effects of excited-state absorption and stimulated emission in UV dyes on the shortening of laser pulses interacting with saturable absorbers

   • Ch. G. Christov
   • I. V. Tomov

   OriginalPaper Pages: 137 - 144

8. Pulse-shape determination of intracavity compressed picosecond pulses by two-photon fluorescence analysis

   • P. Sperber
   • A. Penzkofer

   OriginalPaper Pages: 145 - 154

9. Power characteristics of high magnification semiconductor lasers

   • Lee W. Casperson

   OriginalPaper Pages: 155 - 167

10. Optical fibre communications — principles and practice

    • P. W. Black

    Book Reviews Pages: 169 - 169