(19)

(11)

EP 1 163 711 A1

(12)

(43) Date of publication: 19.12.2001 Bulletin 2001/51 (21) Application number: 00916636.4 (22) Date of filing: 24.03.2000

(51) International Patent Classification (IPC)7: H01S 5/028, H01S 5/022, H01L 31/0203, H01L 33/00 (86) International application number: PCT/US0007/766 (87) International publication number: WO 0079/659 (28.12.2000 Gazette 2000/52)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 24.03.1999 US 125916 P 20.03.2000 US 531442 (71) Applicant: Cielo Communications, Inc. Broomfield, Colorado 80021 (US)	(72) Inventor: SCOTT, Jeffrey, W. Boulder, CO 80303 (US) (74) Representative: Enskat, Michael Antony Frank  Saunders & Dolleymore, 9, Rickmansworth Road Watford, Hertfordshire WD18 0JU Watford, Hertfordshire WD18 0JU (GB)