Optical fibre distributed feedback laser

摘要

PCT No. PCT/GB95/01026 Sec. 371 Date Mar. 20, 1997 Sec. 102(e) Date Mar. 20, 1997 PCT Filed May 5, 1995 PCT Pub. No. WO95/31020 PCT Pub. Date Nov. 16, 1995An optical fibre distributed feedback laser comprises an amplifying optical fibre (50) operable to provide optical gain at a lasing wavelength, in which a diffraction grating (30) is disposed on at least a portion of the amplifying optical fibre to provide distributed optical feedback for sustaining lasing action at the lasing wavelength.