Title :
Improved gain block for long wavelength (1.55 μm) hybrid integrated devices
Author :
Lealman, I.F. ; Kelly, A.E. ; Rivers, L.J. ; Perrin, S.D. ; Moore, R.
Author_Institution :
BT Lab., Ipswich, UK
fDate :
11/12/1998 12:00:00 AM
Abstract :
A curved waveguide, strained multiple quantum well reflective amplifier with an integrated front facet mode expander has been designed and fabricated. A device without facet coatings has been found to have a chip gain of 36 dB with 6 dB of gain ripple. This equates to an effective facet reflectivity of 8×10-6
Keywords :
diffraction gratings; fibre lasers; infrared sources; integrated optics; laser modes; laser transitions; optical films; quantum well lasers; reflectivity; waveguide lasers; chip gain; curved waveguide; effective facet reflectivity; gain ripple; improved gain block; integrated front facet mode expander; long wavelength hybrid integrated devices; strained multiple quantum well reflective amplifier;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981557
