Generation of 578-nm yellow light over 10 mW by second harmonic generation of an 1156-nm external-cavity diode laser

Lee, Won-Kyu; Park, Chang Yong; Yu, Dai-Hyuk; Park, Sang Eon; Lee, Sang-Bum; Kwon, Taeg Yong

doi:10.1364/oe.19.017453

Cited by 30 publications

(15 citation statements)

References 21 publications

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“…A higher efficiency of 10.5% was later demonstrated by using a waveguided periodically−poled KTP crystal, end−pumped by a tunable QD laser (150 nm tunability around 1213 nm) [13], resulting in frequency doubling into the orange spectral range (612.9 nm), with a temperature−controlled tunability of 3.4 nm [13]. The use of a waveguided periodically−poled LiNbO 3 crystal was also used to significantly boost the efficiency of 578 nm yellow light generation with a QD tunable laser without an enhancement cavity, resulting in yellow light with an output power slightly over 10 mW and a conversion efficiency of around 30% [70].…”

Section: Applicationsmentioning

confidence: 99%

Unlocking Spectral Versatility from Broadly−Tunable Quantum−Dot Lasers

White

Cataluna

2015

Photonics

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Wavelength−tunable semiconductor quantum−dot lasers have achieved impressive performance in terms of high−power, broad tunability, low threshold current, as well as broadly tunable generation of ultrashort pulses. InAs/GaAs quantum−dot−based lasers in particular have demonstrated significant versatility and promise for a range of applications in many areas such as biological imaging, optical fiber communications, spectroscopy, THz radiation generation and frequency doubling into the visible region. In this review, we cover the progress made towards the development of broadly−tunable quantum−dot edge−emitting lasers, particularly in the spectral region between 1.0-1.3 µm. This review discusses the strategies developed towards achieving lower threshold current, extending the tunability range and scaling the output power, covering achievements in both continuous wave and mode−locked InAs/GaAs quantum−dot lasers. We also highlight a number of applications which have benefitted from these advances, as well as emerging new directions for further development of broadly−tunable quantum−dot lasers.

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Section: Applicationsmentioning

confidence: 99%

Unlocking Spectral Versatility from Broadly−Tunable Quantum−Dot Lasers

White

Cataluna

2015

Photonics

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“…While SHG-based schemes have already been adopted [11,12], in our system we were able to obtain a large amount of power (60 mW) of visible light. This represents a very important feature in order to observe and exploit the clock transition in Ytterbium bosonic isotopes where the 1 S 0 → 3 P 0 transition is strictly forbidden because of the absence of hyperfine structure (due to the zero nuclear spin), but can be induced via magnetic quenching with the 3 P 1 state [13].…”

Section: Introductionmentioning

confidence: 99%

A compact ultranarrow high-power laser system for experiments with 578 nm ytterbium clock transition

Cappellini¹,

Lombardi

Mancini

et al. 2015

Review of Scientific Instruments

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In this paper we present the realization of a compact, high-power laser system able to excite the Ytterbium clock transition at 578 nm. Starting from an external-cavity laser based on a quantum dot chip at 1156 nm with an intra-cavity electro-optic modulator, we were able to obtain up to 60 mW of visible light at 578 nm via frequency doubling. The laser is locked with a 500 kHz bandwidth to a ultra-low-expansion glass cavity stabilized at its zero coefficient of thermal expansion temperature through an original thermal insulation and correction system. This laser allowed the observation of the clock transition in fermionic 173 Yb with a < 50 Hz linewidth over 5 minutes, limited only by a residual frequency drift of some 0.1 Hz/s.

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“…These power levels meet the requirements for direct applications of lasers in treatment of vascular diseases and for pumping of Ti:sapphire lasers [31], where multi-Watt-level powers are necessary. Frequency doubled diode lasers have also been demonstrated in the yellow-orange spectral range although at significantly lower output power [32]- [34]. The achieved power levels are mainly limited by the available output power from the tapered diode lasers.…”

Section: Introductionmentioning

confidence: 99%