By the same authors

From the same journal

Asymmetric-waveguide, short cavity designs with a bulk active layer for high pulsed power eye-safe spectral range laser diodes

Research output: Contribution to journalArticlepeer-review

Standard

Asymmetric-waveguide, short cavity designs with a bulk active layer for high pulsed power eye-safe spectral range laser diodes. / Ryvkin, B.S.; Avrutin, Evgeny; Kostamovaara, Juha Tapio.

In: Semiconductor science and technology, Vol. 35, No. 8, 01.07.2020, p. 1-11.

Research output: Contribution to journalArticlepeer-review

Harvard

Ryvkin, BS, Avrutin, E & Kostamovaara, JT 2020, 'Asymmetric-waveguide, short cavity designs with a bulk active layer for high pulsed power eye-safe spectral range laser diodes', Semiconductor science and technology, vol. 35, no. 8, pp. 1-11. https://doi.org/10.1088/1361-6641/ab8fbe

APA

Ryvkin, B. S., Avrutin, E., & Kostamovaara, J. T. (2020). Asymmetric-waveguide, short cavity designs with a bulk active layer for high pulsed power eye-safe spectral range laser diodes. Semiconductor science and technology, 35(8), 1-11. https://doi.org/10.1088/1361-6641/ab8fbe

Vancouver

Ryvkin BS, Avrutin E, Kostamovaara JT. Asymmetric-waveguide, short cavity designs with a bulk active layer for high pulsed power eye-safe spectral range laser diodes. Semiconductor science and technology. 2020 Jul 1;35(8):1-11. https://doi.org/10.1088/1361-6641/ab8fbe

Author

Ryvkin, B.S. ; Avrutin, Evgeny ; Kostamovaara, Juha Tapio. / Asymmetric-waveguide, short cavity designs with a bulk active layer for high pulsed power eye-safe spectral range laser diodes. In: Semiconductor science and technology. 2020 ; Vol. 35, No. 8. pp. 1-11.

Bibtex - Download

@article{51ebc67552284556b426a2034864eb01,
title = "Asymmetric-waveguide, short cavity designs with a bulk active layer for high pulsed power eye-safe spectral range laser diodes",
abstract = "It is shown, by calculations calibrated against the authors{\textquoteright} recent experimental data, that an eye-safe wavelength range InGaAsP/InP high pulsed power laser design using a bulk active layer, which has a large refractive index step with respect to the optical confinement layer and is located close to the p-cladding, can provide substantial performance improvement compared to the best results achieved so far for this operating regime and wavelength. The dependence of the laser performance on the design parameters such as the thicknesses of the active layer and the waveguide, as well as the cavity length, are analysed. It is shown that the relatively thick bulk active layer in such InGaAsP/InP lasers allows the use of short cavity lengths (~1 mm or even shorter), for achieving high pulsed power while maintaining a low p-cladding series resistance (making for high efficiency) and a narrow far field (making for high brightness). A single-asymmetry structure with the asymmetric active layer location but symmetric optical confinement layer/cladding refractive index steps gives performance only marginally inferior that of a double-asymmetric one including asymmetric refractive index steps.",
author = "B.S. Ryvkin and Evgeny Avrutin and Kostamovaara, {Juha Tapio}",
note = "{\textcopyright} 2020 The Author(s). Published by IOP Publishing Ltd",
year = "2020",
month = jul,
day = "1",
doi = "10.1088/1361-6641/ab8fbe",
language = "English",
volume = "35",
pages = "1--11",
journal = "Semiconductor science and technology",
issn = "0268-1242",
publisher = "IOP Publishing Ltd.",
number = "8",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Asymmetric-waveguide, short cavity designs with a bulk active layer for high pulsed power eye-safe spectral range laser diodes

AU - Ryvkin, B.S.

AU - Avrutin, Evgeny

AU - Kostamovaara, Juha Tapio

N1 - © 2020 The Author(s). Published by IOP Publishing Ltd

PY - 2020/7/1

Y1 - 2020/7/1

N2 - It is shown, by calculations calibrated against the authors’ recent experimental data, that an eye-safe wavelength range InGaAsP/InP high pulsed power laser design using a bulk active layer, which has a large refractive index step with respect to the optical confinement layer and is located close to the p-cladding, can provide substantial performance improvement compared to the best results achieved so far for this operating regime and wavelength. The dependence of the laser performance on the design parameters such as the thicknesses of the active layer and the waveguide, as well as the cavity length, are analysed. It is shown that the relatively thick bulk active layer in such InGaAsP/InP lasers allows the use of short cavity lengths (~1 mm or even shorter), for achieving high pulsed power while maintaining a low p-cladding series resistance (making for high efficiency) and a narrow far field (making for high brightness). A single-asymmetry structure with the asymmetric active layer location but symmetric optical confinement layer/cladding refractive index steps gives performance only marginally inferior that of a double-asymmetric one including asymmetric refractive index steps.

AB - It is shown, by calculations calibrated against the authors’ recent experimental data, that an eye-safe wavelength range InGaAsP/InP high pulsed power laser design using a bulk active layer, which has a large refractive index step with respect to the optical confinement layer and is located close to the p-cladding, can provide substantial performance improvement compared to the best results achieved so far for this operating regime and wavelength. The dependence of the laser performance on the design parameters such as the thicknesses of the active layer and the waveguide, as well as the cavity length, are analysed. It is shown that the relatively thick bulk active layer in such InGaAsP/InP lasers allows the use of short cavity lengths (~1 mm or even shorter), for achieving high pulsed power while maintaining a low p-cladding series resistance (making for high efficiency) and a narrow far field (making for high brightness). A single-asymmetry structure with the asymmetric active layer location but symmetric optical confinement layer/cladding refractive index steps gives performance only marginally inferior that of a double-asymmetric one including asymmetric refractive index steps.

U2 - 10.1088/1361-6641/ab8fbe

DO - 10.1088/1361-6641/ab8fbe

M3 - Article

VL - 35

SP - 1

EP - 11

JO - Semiconductor science and technology

JF - Semiconductor science and technology

SN - 0268-1242

IS - 8

ER -