(19)
(11) EP 1 636 884 A1

(12)

(43) Date of publication:
22.03.2006 Bulletin 2006/12

(21) Application number: 04737797.3

(22) Date of filing: 09.06.2004
(51) International Patent Classification (IPC): 
H01S 5/187(2000.01)
H01L 33/00(1974.07)
(86) International application number:
PCT/CA2004/000855
(87) International publication number:
WO 2004/109873 (16.12.2004 Gazette 2004/51)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

(30) Priority: 10.06.2003 US 477262 P
11.06.2003 CA 2431969

(71) Applicant: Photonami Inc.
Richmond Hill, Ontario L4B 1E4 (CA)

(72) Inventors:
  • Shams-Zadeh-Amiri, Ali, M.
    North York, Ontario M3A 1V4 (CA)
  • LI, Wei
    Waterloo, Ontario N2L 3B8 (CA)
  • HASLETT, Tom
    Toronto, Ontario M4L 2S5 (CA)
  • SADEGHI, Seyed Mostafa
    Toronto, Ontario M4P 2K8 (CA)

(74) Representative: Beattie, Alex Thomas Stewart 
Forrester & Boehmert, Pettenkoferstrasse 20-22
80336 Munchen
80336 Munchen (DE)

   


(54) METHOD AND APPARATUS FOR SUPPRESSION OF SPATIAL-HOLE BURNING IN SECOND OR HIGHER ORDER DFB LASERS