Wavelength channel accuracy of an external cavity wavelength tunable laser with intracavity wavelength reference etalon

Merlier, J. De; Mizutani, K.; Sudo, S.; Satô, Kenji; Kudo, K.

doi:10.1109/jlt.2006.876338

Cited by 14 publications

(8 citation statements)

References 5 publications

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“…43. In this case, in order to cover the desired wavelength range, the structure of the gain section comprised three different types of quantum wells with appropriately shifted band-gap wavelengths (Dl g = 10 nm).…”

Section: Semiconductor Optical Amplifiersmentioning

confidence: 99%

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External cavity wavelength tunable semiconductor lasers - a review

Mroziewicz

2008

Opto-Electronics Review

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External cavity tunable lasers have been around for many years and now constitute a large group of semiconductor lasers featuring very unique properties. The present review has been restricted to the systems based on the edge emitting diode lasers set-up in a hybrid configuration. The aim was to make the paper as concise as possible without sacrificing, however, most important details. We start with short description of the fundamentals essential for operation of the external cavity lasers to set the stage for explanation of their properties and some typical designs. Then, semiconductor optical amplifiers used in the external cavity lasers are highlighted more in detail as well as diffraction gratings and other types of wavelength-selective reflectors used to provide optical feedback in these lasers. This is followed by a survey of designs and properties of various external cavity lasers both with mobile bulk gratings and with fixed wavelength selective mirrors. The paper closes with description of some recent developments in the field to show prospects for further progress directed towards miniaturization and integration of the external cavity laser components used so far to set-up hybrid systems.

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Section: Semiconductor Optical Amplifiersmentioning

confidence: 99%

“…7 [17,43]. The SOA chip contained a gain and a phase section, the mirror was a liquid crystal-based tunable filter.…”

Section: Electronically Tunable Eclsmentioning

confidence: 99%

External cavity wavelength tunable semiconductor lasers - a review

Mroziewicz

2008

Opto-Electronics Review

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“…The output wavelength is inversely proportional to the frequency of the applied radio frequency (RF) signal in the AOTF. A comb-like spectral laser source with a narrow spectral linewidth is implemented for extended interferometric displacement measurements by combining an AOTF [ 14 ] and an etalon filter [ 15 , 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Acousto-Optic–Based Wavelength-Comb-Swept Laser for Extended Displacement Measurements

Park

Chun

Han

et al. 2017

Sensors

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We demonstrate a novel wavelength-comb-swept laser based on two intra-cavity filters: an acousto-optic tunable filter (AOTF) and a Fabry-Pérot etalon filter. The AOTF is used for the tunable selection of the output wavelength with time and the etalon filter for the narrowing of the spectral linewidth to extend the coherence length. Compared to the conventional wavelength-swept laser, the acousto-optic–based wavelength-comb-swept laser (WCSL) can extend the measureable range of displacement measurements by decreasing the sensitivity roll-off of the point spread function. Because the AOTF contains no mechanical moving parts to select the output wavelength acousto-optically, the WCSL source has a high wavenumber (k) linearity of R2 = 0.9999 to ensure equally spaced wavelength combs in the wavenumber domain.

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“…The ECTL produced by Ning Wang has an SMSR of 55 dB, an output power of 14 dBm and a tuning range of 40 nm [15], but it used piezoelectric ceramics as the tuning element in which theoretical analysis has not involved. ECTL fabricated by K. Sato has a channel accuracy of less than 0.6 GHz in the Cband with a channel spacing of 50 GHz [16]. In 2018, Giovanni B.…”

mentioning

confidence: 99%

Analytical Models for External Cavity Lasers Using Tunable Etalons

Jin

et al. 2022

IEEE Photonics J.

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Recently, external-cavity tunable lasers (ECTLs) have been widely used in WDM systems for their excellent characteristics, such as high side-mode suppression ratio (SMSR), low relative intensity noise (RIN) and narrow line width. In this paper, we propose an analytical model for external-cavity lasers using tunable etalons and elaborate on the selection of key parameters in the design scheme, which is rarely discussed in detail in previous researches. By numerically solving the model based on the rate equation and the transmission matrix, we analyzed the effects of different end-facet reflectivity on the SMSR, PI curves, electron and photon concentration distributions. In addition, By choosing appropriate physical parameters, we theoretically demonstrate an ECTL with a single wavelength tuning range of 1570.5-1603.6 nm (186.95-190.9 THz), and a power efficiency of 0.673 W/A, as well as an SMSR exceeds 50 dB.

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Wavelength channel accuracy of an external cavity wavelength tunable laser with intracavity wavelength reference etalon

Cited by 14 publications

References 5 publications

External cavity wavelength tunable semiconductor lasers - a review

External cavity wavelength tunable semiconductor lasers - a review

Acousto-Optic–Based Wavelength-Comb-Swept Laser for Extended Displacement Measurements

Analytical Models for External Cavity Lasers Using Tunable Etalons

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