Quantum-well laser with integrated passive waveguide fabricated by neutral impurity disordering

Andrew, S.R., Marsh, J.H. , Holland, M.C. and Kean, A.H. (1992) Quantum-well laser with integrated passive waveguide fabricated by neutral impurity disordering. IEEE Photonics Technology Letters, 4(5), pp. 426-428. (doi: 10.1109/68.136474)

Abstract

Double quantum-well lasers have been fabricated with an integrated low-loss waveguide in which the quantum wells have been intermixed by neutral impurity disordering. Threshold currents of devices with integrated 600- mu m passive guides show an increase of less than 10% over normal Fabry-Perot lasers of the same active length, confirming that the propagation loss in the passive wavelength is significantly reduced by disordering to 4.5+or-2 cm/sup -1/. Comparison with unimplanted devices suggests that the implanted dopant also passivates the waveguide electrically.

• Item Type: Articles
• Additional Information: This work was supported by SERC Grant GR/F/65248 and the SERC and Northern Telecom/STC Microwave and Optical Systems (Optical Devices Division) for provision of a CASE studentship.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Marsh, Professor John
• Authors: Andrew, S.R., Marsh, J.H., Holland, M.C., and Kean, A.H.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: IEEE Photonics Technology Letters
• Publisher: IEEE
• ISSN: 1041-1135
• ISSN (Online): 1941-0174