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Proceedings Paper

High performance directly modulated lasers: device physics
Author(s): J. Kenton White; Gordon Knight; Suhit Das; Richard J. Finlay; Trevor Jones; Cornelis Blaauw; Andrew Fekecs; Harry Walters; Treena Grevatt; Nicholas Brooks; Paul Firth; Lee Nelson; Anthony Graham; Ian Woods; Karin Hinzer; Darren Goodchild; Anthony J. SpringThorpe; Richard Glew; Gregory J. Letal
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Paper Abstract

Directly modulated lasers (DMLs) have two high performance applications: 1310 nm 10 Gb/s uncooled and 1550 2.5 Gs/s extended reach. Two key elements are gain coupled gratings and buried heterostructures. Gain coupled gratings simultaneously increase the DML's intrinsic relaxation oscillation frequency and damping, while the buried heterostructure reduces thermal chirp and parasitic capacitance. Large relaxation oscillation frequencies and reduced parasitic capacitance allow 85°C operation; large damping and reduced thermal chirp enable extended reach.

Paper Details

Date Published: 25 July 2003
PDF: 15 pages
Proc. SPIE 4986, Physics and Simulation of Optoelectronic Devices XI, (25 July 2003); doi: 10.1117/12.474377
Show Author Affiliations
J. Kenton White, Bookham Technology (Canada)
Gordon Knight, Bookham Technology (Canada)
Suhit Das, Bookham Technology (Canada)
Richard J. Finlay, Bookham Technology (Canada)
Trevor Jones, Bookham Technology (Canada)
Cornelis Blaauw, Bookham Technology (Canada)
Andrew Fekecs, Bookham Technology (Canada)
Harry Walters, Bookham Technology (Canada)
Treena Grevatt, Bookham Technology (Canada)
Nicholas Brooks, Bookham Technology (Canada)
Paul Firth, Bookham Technology (Canada)
Lee Nelson, Bookham Technology (Canada)
Anthony Graham, Bookham Technology (Canada)
Ian Woods, Bookham Technology (Canada)
Karin Hinzer, Bookham Technology (Canada)
Darren Goodchild, Bookham Technology (Canada)
Anthony J. SpringThorpe, Bookham Technology (Canada)
Richard Glew, Bookham Technology (Canada)
Gregory J. Letal, Bookham Technology (Canada)

Published in SPIE Proceedings Vol. 4986:
Physics and Simulation of Optoelectronic Devices XI
Marek Osinski; Hiroshi Amano; Peter Blood, Editor(s)

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