Measurements of coupling and reflection characteristics of butt-joints in passive waveguide integrated laser diodes

Author

Song, Jung-Ho ; Park, Jung-Woo ; Sim, Eun-Deok ; Baek, Yongsoon

Author_Institution

Opt. Devices Dept., Electron. & Telecommun. Res. Inst., Daejon, South Korea

Volume

17

Issue

9

fYear

2005

Firstpage

1791

Lastpage

1793

Abstract

Amplified spontaneous emission (ASE) spectra of passive waveguide integrated lasers have been studied to estimate the coupling efficiency and the reflectivity at the butt-joints between active and passive waveguides. A new method has been proposed for the analysis of ASE to extract the coupling efficiency and reflectivity at the butt-joints. This method was applied experimentally to estimate the coupling and reflection of the passive waveguide integrated lasers with different amounts of vertical misalignments of active and passive waveguides.

Keywords

butt welding; integrated optics; optical couplers; reflectivity; semiconductor device measurement; semiconductor lasers; superradiance; waveguide lasers; amplified spontaneous emission; butt-joints; coupling efficiency; laser diodes; passive waveguide; reflectivity; vertical misalignments; Coupling circuits; Diode lasers; Optical coupling; Optical reflection; Optical waveguides; Reflectivity; Semiconductor lasers; Semiconductor waveguides; Waveguide lasers; Wavelength measurement; Optical coupling; photonic integrated circuit; reflection; semiconductor waveguides;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2005.852329

Filename

1498860