The effect of mirror facets on lasing properties of distributed feedback (DFB) InGaAsP/InP laser diodes was studied. A DFB laser with a window region was found to be suitable to examine the effect of mirror facets. The effective reflectivity of a window structure was calculated to be very small, typically as small as 0. 03 percent for a few tens of micrometers of the window region. These small effective reflectivities were experimentally confirmed. Three kinds of DFB lasers, i. e. , a double-window (DW), a single-window (SW), and a Fabry-Perot (FP), are discussed.
|Number of pages||10|
|Journal||IEEE Journal of Quantum Electronics|
|Publication status||Published - 1984 Mar|
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)