High-performance directly modulated lasers: device physics

J. Kenton White

doi:10.1117/12.567850

20 December 2004 High-performance directly modulated lasers: device physics

J. Kenton White

Proceedings Volume 5577, Photonics North 2004: Optical Components and Devices; (2004) https://doi.org/10.1117/12.567850
Event: Photonics North, 2004, Ottawa, Ontario, Canada

Abstract

Directly modulated lasers (DMLs) have two high performance applications: 1310 nm 10 Gb/s uncooled and 1550 2.5 Gb/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.

Citation Download Citation

J. Kenton White "High-performance directly modulated lasers: device physics", Proc. SPIE 5577, Photonics North 2004: Optical Components and Devices, (20 December 2004); https://doi.org/10.1117/12.567850

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