Modeling noise and modulation performance of fiber grating external cavity lasers

Malin Premaratne; Arthur J. Lowery; Zaheer Ahmed; Dalma Novak

doi:10.1109/2944.605670

Modeling noise and modulation performance of fiber grating external cavity lasers

Malin Premaratne, Arthur J. Lowery, Zaheer Ahmed, Dalma Novak

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

66 Citations (Scopus)

Abstract

A detailed model is developed for analyzing fiber grating external cavity lasers for both static and small-signal modulation conditions. The chip and package parasitics and leakage current induced distortion are included. The composite system is solved analytically in the small-signal regime using a Volterra functional series expansion method. As an application of the model, a thorough analysis of the appearance of nulls close to the harmonics of the cavity resonance frequency in the noise and modulation spectra is given. We show that the appearance of these nulls can be explained using the interplay of amplitude and phase coupling between laser diode and external resonant cavity. A signal flow graph approach is introduced which identifies methods of minimizing the nulls.

Original language	English
Pages (from-to)	290-303
Number of pages	14
Journal	IEEE Journal of Selected Topics in Quantum Electronics
Volume	3
Issue number	2
DOIs	https://doi.org/10.1109/2944.605670
Publication status	Published - Apr 1997
Externally published	Yes

Keywords

External cavity
Fiber Bragg grating
Modeling modulation
Noise
Seimconductor lasers

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10.1109/2944.605670

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abstract = "A detailed model is developed for analyzing fiber grating external cavity lasers for both static and small-signal modulation conditions. The chip and package parasitics and leakage current induced distortion are included. The composite system is solved analytically in the small-signal regime using a Volterra functional series expansion method. As an application of the model, a thorough analysis of the appearance of nulls close to the harmonics of the cavity resonance frequency in the noise and modulation spectra is given. We show that the appearance of these nulls can be explained using the interplay of amplitude and phase coupling between laser diode and external resonant cavity. A signal flow graph approach is introduced which identifies methods of minimizing the nulls.",

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AU - Premaratne, Malin

AU - Lowery, Arthur J.

AU - Ahmed, Zaheer

AU - Novak, Dalma

PY - 1997/4

Y1 - 1997/4

N2 - A detailed model is developed for analyzing fiber grating external cavity lasers for both static and small-signal modulation conditions. The chip and package parasitics and leakage current induced distortion are included. The composite system is solved analytically in the small-signal regime using a Volterra functional series expansion method. As an application of the model, a thorough analysis of the appearance of nulls close to the harmonics of the cavity resonance frequency in the noise and modulation spectra is given. We show that the appearance of these nulls can be explained using the interplay of amplitude and phase coupling between laser diode and external resonant cavity. A signal flow graph approach is introduced which identifies methods of minimizing the nulls.

AB - A detailed model is developed for analyzing fiber grating external cavity lasers for both static and small-signal modulation conditions. The chip and package parasitics and leakage current induced distortion are included. The composite system is solved analytically in the small-signal regime using a Volterra functional series expansion method. As an application of the model, a thorough analysis of the appearance of nulls close to the harmonics of the cavity resonance frequency in the noise and modulation spectra is given. We show that the appearance of these nulls can be explained using the interplay of amplitude and phase coupling between laser diode and external resonant cavity. A signal flow graph approach is introduced which identifies methods of minimizing the nulls.

KW - External cavity

KW - Fiber Bragg grating

KW - Modeling modulation

KW - Noise

KW - Seimconductor lasers

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Modeling noise and modulation performance of fiber grating external cavity lasers

Abstract

Keywords

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