Modulation of Frequency Doubled DFB-Tapered Diode Lasers for Medical Treatment

Mathias Christensen; Anders Kragh Hansen; Danny Noordegraaf; Ole Bjarlin Jensen; Peter M. W. Skovgaard

doi:10.1117/12.2250337

Modulation of Frequency Doubled DFB-Tapered Diode Lasers for Medical Treatment

Mathias Christensen, Anders Kragh Hansen, Danny Noordegraaf, Ole Bjarlin Jensen, Peter M. W. Skovgaard

Norlase ApS

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

The use of visible lasers for medical treatments is on the rise, and together with this comes higher expectations for the laser systems. For many medical treatments, such as ophthalmology, doctors require pulse on demand operation together with a complete extinction of the light between pulses. We have demonstrated power modulation from 0.1 Hz to 10 kHz at 532 nm with a modulation depth above 97% by wavelength detuning of the laser diode. The laser diode is a 1064 nm monolithic device with a distributed feedback (DFB) laser as the master oscillator (MO), and a tapered power amplifier (PA). The MO and PA have separate electrical contacts and the modulation is achieved with wavelength tuning by adjusting the current through the MO 40 mA.

Original language	English
Title of host publication	Proceedings of SPIE
Number of pages	6
Volume	10088
Publisher	SPIE - International Society for Optical Engineering
Publication date	2017
Article number	100881A
DOIs	https://doi.org/10.1117/12.2250337
Publication status	Published - 2017
Event	SPIE Photonics West LASE 2017: SPIE Conference 10088 - The Moscone Center, San Francisco, United States Duration: 28 Jan 2017 → 2 Feb 2017

Conference

Conference	SPIE Photonics West LASE 2017
Location	The Moscone Center
Country/Territory	United States
City	San Francisco
Period	28/01/2017 → 02/02/2017

Series	Proceedings of SPIE - The International Society for Optical Engineering
ISSN	0277-786X

Bibliographical note

Copyright 2017 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Keywords

Visible lasers
Distributed feedback lasers
Frequency doubled lasers
Pulsed lasers

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Modulation of frequency doubled DFB tapered diode lasers for medical treatment PUBLISHEDFinal published version, 564 KB

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title = "Modulation of Frequency Doubled DFB-Tapered Diode Lasers for Medical Treatment",

abstract = "The use of visible lasers for medical treatments is on the rise, and together with this comes higher expectations for the laser systems. For many medical treatments, such as ophthalmology, doctors require pulse on demand operation together with a complete extinction of the light between pulses. We have demonstrated power modulation from 0.1 Hz to 10 kHz at 532 nm with a modulation depth above 97% by wavelength detuning of the laser diode. The laser diode is a 1064 nm monolithic device with a distributed feedback (DFB) laser as the master oscillator (MO), and a tapered power amplifier (PA). The MO and PA have separate electrical contacts and the modulation is achieved with wavelength tuning by adjusting the current through the MO 40 mA.",

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note = "Copyright 2017 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.; SPIE Photonics West LASE 2017 : SPIE Conference 10088 ; Conference date: 28-01-2017 Through 02-02-2017",

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Christensen, M, Hansen, AK, Noordegraaf, D, Jensen, OB & Skovgaard, PMW 2017, Modulation of Frequency Doubled DFB-Tapered Diode Lasers for Medical Treatment. in Proceedings of SPIE. vol. 10088, 100881A, SPIE - International Society for Optical Engineering, Proceedings of SPIE - The International Society for Optical Engineering, SPIE Photonics West LASE 2017, San Francisco, California, United States, 28/01/2017. https://doi.org/10.1117/12.2250337

Modulation of Frequency Doubled DFB-Tapered Diode Lasers for Medical Treatment. / Christensen, Mathias; Hansen, Anders Kragh; Noordegraaf, Danny et al.
Proceedings of SPIE. Vol. 10088 SPIE - International Society for Optical Engineering, 2017. 100881A (Proceedings of SPIE - The International Society for Optical Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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AU - Skovgaard, Peter M. W.

N1 - Copyright 2017 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

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N2 - The use of visible lasers for medical treatments is on the rise, and together with this comes higher expectations for the laser systems. For many medical treatments, such as ophthalmology, doctors require pulse on demand operation together with a complete extinction of the light between pulses. We have demonstrated power modulation from 0.1 Hz to 10 kHz at 532 nm with a modulation depth above 97% by wavelength detuning of the laser diode. The laser diode is a 1064 nm monolithic device with a distributed feedback (DFB) laser as the master oscillator (MO), and a tapered power amplifier (PA). The MO and PA have separate electrical contacts and the modulation is achieved with wavelength tuning by adjusting the current through the MO 40 mA.

AB - The use of visible lasers for medical treatments is on the rise, and together with this comes higher expectations for the laser systems. For many medical treatments, such as ophthalmology, doctors require pulse on demand operation together with a complete extinction of the light between pulses. We have demonstrated power modulation from 0.1 Hz to 10 kHz at 532 nm with a modulation depth above 97% by wavelength detuning of the laser diode. The laser diode is a 1064 nm monolithic device with a distributed feedback (DFB) laser as the master oscillator (MO), and a tapered power amplifier (PA). The MO and PA have separate electrical contacts and the modulation is achieved with wavelength tuning by adjusting the current through the MO 40 mA.

KW - Visible lasers

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KW - Frequency doubled lasers

KW - Pulsed lasers

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M3 - Article in proceedings

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ER -

Modulation of Frequency Doubled DFB-Tapered Diode Lasers for Medical Treatment

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