High performance directly modulated lasers: device physics

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

doi:10.1117/12.474377

25 July 2003 High performance directly modulated lasers: device physics

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

Author Affiliations +

Proceedings Volume 4986, Physics and Simulation of Optoelectronic Devices XI; (2003) https://doi.org/10.1117/12.474377
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States

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.

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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, and Gregory J. Letal "High performance directly modulated lasers: device physics", Proc. SPIE 4986, Physics and Simulation of Optoelectronic Devices XI, (25 July 2003); https://doi.org/10.1117/12.474377

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