Direct modulation characteristics of composite resonator vertical-cavity lasers

Daniel M. Grasso; Darwin K. Serkland; Gregory M. Peake; Kent M. Geib; Kent D. Choquette

doi:10.1109/JQE.2006.883499

Direct modulation characteristics of composite resonator vertical-cavity lasers

Daniel M. Grasso, Darwin K. Serkland, Gregory M. Peake, Kent M. Geib, Kent D. Choquette

Research output: Contribution to journal › Article › peer-review

Abstract

We report the small-signal modulation characteristics of a monolithic dual resonator vertical cavity surface emitting laser. The modulation response is described by a system of rate equations with two independent carrier populations and a single longitudinal optical mode. The independent optical overlaps and differential gains of the two active regions can each be adjusted to maximize the output response. We show that under certain conditions, the composite resonator may achieve a higher bandwidth than a single cavity laser with the same photon density. We find the relaxation oscillation frequency to depend mainly on the total photon density and not the individual currents in the two cavities. With appropriate current injection, the composite resonator laser achieves a maximum -3-dB bandwidth of 12.5 GHz and a maximum modulation current efficiency factor of approximately 5 GHz/ma^1/2.

Original language	English (US)
Pages (from-to)	1248-1254
Number of pages	7
Journal	IEEE Journal of Quantum Electronics
Volume	42
Issue number	12
DOIs	https://doi.org/10.1109/JQE.2006.883499
State	Published - Dec 2006

Keywords

Composite resonator
Coupled cavity
Modulation
Vertical-cavity laser

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

Online availability

10.1109/JQE.2006.883499

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title = "Direct modulation characteristics of composite resonator vertical-cavity lasers",

abstract = "We report the small-signal modulation characteristics of a monolithic dual resonator vertical cavity surface emitting laser. The modulation response is described by a system of rate equations with two independent carrier populations and a single longitudinal optical mode. The independent optical overlaps and differential gains of the two active regions can each be adjusted to maximize the output response. We show that under certain conditions, the composite resonator may achieve a higher bandwidth than a single cavity laser with the same photon density. We find the relaxation oscillation frequency to depend mainly on the total photon density and not the individual currents in the two cavities. With appropriate current injection, the composite resonator laser achieves a maximum -3-dB bandwidth of 12.5 GHz and a maximum modulation current efficiency factor of approximately 5 GHz/ma1/2.",

keywords = "Composite resonator, Coupled cavity, Modulation, Vertical-cavity laser",

author = "Grasso, {Daniel M.} and Serkland, {Darwin K.} and Peake, {Gregory M.} and Geib, {Kent M.} and Choquette, {Kent D.}",

note = "Funding Information: Manuscript received May 18, 2006; revised August 8, 2006. This work was supported in part by the National Science Foundation under Grant 0121662 and in part by a Sandia National Laboratories Microsystems and Engineering Systems Applications Institute Fellowship. D. M. Grasso was with the Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA. He is now with Nuvonyx, Inc., Bridgeton, MO 63044 USA. D. K. Serkland, G. M. Peake, and K. M. Geib are with the Sandia National Laboratories, Albuquerque, NM 87185 USA. K. D. Choquette is with the Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA (e-mail: [email protected]). Color versions of Figs. 1–5 are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/JQE.2006.883499",

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AU - Serkland, Darwin K.

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AU - Choquette, Kent D.

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N2 - We report the small-signal modulation characteristics of a monolithic dual resonator vertical cavity surface emitting laser. The modulation response is described by a system of rate equations with two independent carrier populations and a single longitudinal optical mode. The independent optical overlaps and differential gains of the two active regions can each be adjusted to maximize the output response. We show that under certain conditions, the composite resonator may achieve a higher bandwidth than a single cavity laser with the same photon density. We find the relaxation oscillation frequency to depend mainly on the total photon density and not the individual currents in the two cavities. With appropriate current injection, the composite resonator laser achieves a maximum -3-dB bandwidth of 12.5 GHz and a maximum modulation current efficiency factor of approximately 5 GHz/ma1/2.

AB - We report the small-signal modulation characteristics of a monolithic dual resonator vertical cavity surface emitting laser. The modulation response is described by a system of rate equations with two independent carrier populations and a single longitudinal optical mode. The independent optical overlaps and differential gains of the two active regions can each be adjusted to maximize the output response. We show that under certain conditions, the composite resonator may achieve a higher bandwidth than a single cavity laser with the same photon density. We find the relaxation oscillation frequency to depend mainly on the total photon density and not the individual currents in the two cavities. With appropriate current injection, the composite resonator laser achieves a maximum -3-dB bandwidth of 12.5 GHz and a maximum modulation current efficiency factor of approximately 5 GHz/ma1/2.

KW - Composite resonator

KW - Coupled cavity

KW - Modulation

KW - Vertical-cavity laser

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Direct modulation characteristics of composite resonator vertical-cavity lasers

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