Distributed Feedback Lasers with an S-Bent Waveguide for High-Power Single-Mode Operation

Joseph Salzman; Henning Olesen; Anders M⊘ller-Larsen; Ole Albrektsen; Jesper Hanberg; Jesper N⊘rregaard; Björn Jonsson; Bjarne Tromborg

doi:10.1109/2944.401214

Distributed Feedback Lasers with an S-Bent Waveguide for High-Power Single-Mode Operation

Joseph Salzman^*, Henning Olesen, Anders M⊘ller-Larsen, Ole Albrektsen, Jesper Hanberg, Jesper N⊘rregaard, Björn Jonsson, Bjarne Tromborg

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

24 Citations (Scopus)

Abstract

DFB lasers with variations in the Bragg wavenumber along the cavity (corrugation-pitch modulation) can be designed to operate in a single mode up to high output powers. Practical implementation of various pitch-modulated DFB cavities is facilitated by bending the laser waveguide over a uniform grating, so that the Bragg wavenumber is varied along the cavity. In this paper, above-threshold behavior of such lasers is studied, and design rules for high power single-mode operation are developed. S-bent waveguide DFB lasers, fabricated according to our design criteria, exhibit single-mode operation with 40 dB side mode suppression ratio from threshold to 10 x Ith.

Original language	English
Journal	IEEE Journal on Selected Topics in Quantum Electronics
Volume	1
Issue number	2
Pages (from-to)	346-355
Number of pages	10
ISSN	1077-260X
DOIs	https://doi.org/10.1109/2944.401214
Publication status	Published - Jun 1995
Externally published	Yes

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title = "Distributed Feedback Lasers with an S-Bent Waveguide for High-Power Single-Mode Operation",

abstract = "DFB lasers with variations in the Bragg wavenumber along the cavity (corrugation-pitch modulation) can be designed to operate in a single mode up to high output powers. Practical implementation of various pitch-modulated DFB cavities is facilitated by bending the laser waveguide over a uniform grating, so that the Bragg wavenumber is varied along the cavity. In this paper, above-threshold behavior of such lasers is studied, and design rules for high power single-mode operation are developed. S-bent waveguide DFB lasers, fabricated according to our design criteria, exhibit single-mode operation with 40 dB side mode suppression ratio from threshold to 10 x Ith.",

author = "Joseph Salzman and Henning Olesen and Anders M⊘ller-Larsen and Ole Albrektsen and Jesper Hanberg and Jesper N⊘rregaard and Bj{\"o}rn Jonsson and Bjarne Tromborg",

year = "1995",

month = jun,

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language = "English",

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T1 - Distributed Feedback Lasers with an S-Bent Waveguide for High-Power Single-Mode Operation

AU - Salzman, Joseph

AU - Olesen, Henning

AU - M⊘ller-Larsen, Anders

AU - Albrektsen, Ole

AU - Hanberg, Jesper

AU - N⊘rregaard, Jesper

AU - Jonsson, Björn

AU - Tromborg, Bjarne

PY - 1995/6

Y1 - 1995/6

N2 - DFB lasers with variations in the Bragg wavenumber along the cavity (corrugation-pitch modulation) can be designed to operate in a single mode up to high output powers. Practical implementation of various pitch-modulated DFB cavities is facilitated by bending the laser waveguide over a uniform grating, so that the Bragg wavenumber is varied along the cavity. In this paper, above-threshold behavior of such lasers is studied, and design rules for high power single-mode operation are developed. S-bent waveguide DFB lasers, fabricated according to our design criteria, exhibit single-mode operation with 40 dB side mode suppression ratio from threshold to 10 x Ith.

AB - DFB lasers with variations in the Bragg wavenumber along the cavity (corrugation-pitch modulation) can be designed to operate in a single mode up to high output powers. Practical implementation of various pitch-modulated DFB cavities is facilitated by bending the laser waveguide over a uniform grating, so that the Bragg wavenumber is varied along the cavity. In this paper, above-threshold behavior of such lasers is studied, and design rules for high power single-mode operation are developed. S-bent waveguide DFB lasers, fabricated according to our design criteria, exhibit single-mode operation with 40 dB side mode suppression ratio from threshold to 10 x Ith.

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JO - IEEE Journal on Selected Topics in Quantum Electronics

JF - IEEE Journal on Selected Topics in Quantum Electronics

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ER -

Distributed Feedback Lasers with an S-Bent Waveguide for High-Power Single-Mode Operation

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