by Smowton, P.M., Thomson, J.D., Yin, M., Dewar, S.V., Blood, P., Bryce, A.C., Marsh, J.H., Hamilton, C.J., Button, C.C.
Published in IEEE journal of quantum electronics (01.03.2002)

by Heaton, J.M., Bourke, M.M., Jones, S.B., Smith, B.H., Hilton, K.P., Smith, G.W., Birbeck, J.C.H., Berry, G., Dewar, S.V., Wight, D.R.
Published in Journal of lightwave technology (01.02.1999)

by Varrazza, R., Yu, S., Owen, M., Khrushchev, I., Penty, R.V., White, I.H., Dewar, S.V.
Published in Conference on Lasers and Electro-Optics (CLEO 2000). Technical Digest. Postconference Edition. TOPS Vol.39 (IEEE Cat. No.00CH37088) (2000)