Frequency tuning of long-wavelength VCSELs

Lytkine, A.; Jäger, Wolfgang; Tulip, J.

doi:10.1016/j.saa.2005.11.004

Cited by 23 publications

(17 citation statements)

References 11 publications

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“…Wavelength tuning across the reflection spectrum of the FBG sensor is then usually realized by current tuning. For VCSELs, this mechanism works up to tuning rates even in the ~100 kHz regime [10]. Moreover, as one can see from Fig.…”

Section: Tuning Propertiesmentioning

confidence: 77%

A precision fiber Bragg grating interrogation system using long-wavelength vertical-cavity surface-emitting laser

Jin²,

Liu³

et al. 2016

Photonic Sens

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This paper presents the development of a cost-effective precision fiber Bragg grating (FBG) interrogation system using long-wavelength vertical-cavity surface-emitting laser (VCSEL). Tuning properties of a long-wavelength VCSEL have been studied experimentally. An approximately quadratic dependence of its wavelength on the injection current has been observed. The overall design and key operations of this system including intensity normalization, peak detection, and quadratic curve fitting are introduced in detail. The results show that the system achieves an accuracy of 1.2 pm with a tuning range of 3 nm and a tuning rate of 1 kHz. It is demonstrated that this system is practical and effective by applied in the FBG transformer temperature monitoring.

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Section: Tuning Propertiesmentioning

confidence: 77%

A precision fiber Bragg grating interrogation system using long-wavelength vertical-cavity surface-emitting laser

Jin²,

Liu³

et al. 2016

Photonic Sens

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“…During the second and fourth electrooptical characterisation, the temperature at the operational laser current was not exactly measured at the defined laser current for lasers of company B. In that case the laser temperature was calculated from a second-order polynomial fit to the measured values [21]. In Table 5 those values are marked with the superscript a.…”

Section: Resultsmentioning

confidence: 99%

Accelerated endurance test of single-mode vertical-cavity surface-emitting lasers under vacuum used for a scalar space magnetometer

et al. 2018

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We performed an endurance test with single-mode vertical-cavity surface-emitting lasers (VCSEL) under vacuum condition and increased operational parameters (laser current and laser temperature) to accelerate the aging of the lasers. During the endurance test the emitted polarization-dependent and polarization-independent optical light power from the lasers was detected. Additionally, electro-optical characterisations including measurements of the combination of laser current and laser temperature to excite the 87 Rb D 1 transition (λ = 795 nm), the current and temperature tuning coefficients, laser line width, threshold current and the polarization ellipse were performed for the aged lasers. The test was started with a number of 12 VCSELs consisting of 4 lasers each from 3 different suppliers. The aging behaviour of VCSELs was investigated with respect to the development of a new optical magnetometer prototype for space missions with a mission duration of up to 17 years. Only a limited change of the electro-optical parameters can be tolerated by the instrument design over the mission duration. The endurance test and the electro-optical characterizations revealed clear differences in the aging behaviour of the three suppliers. Lasers from one supplier showed that they can be operated for more than 17 years under vacuum conditions without major degradation of their operational parameters.

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“…As a result, the relative expansion of the entire laser cavity due to a variation of the injection current drops with the MEMS current, and so does the laser injection current tuning coefficient. Values ranging from −24 to −12 GHz/mA have been obtained in static mode, which is typically 4-5 times smaller than the tuning rate of standard VCSELs in the same spectral range [21,22].…”

Section: Spectral and Tuning Propertiesmentioning

confidence: 91%

“…9). It is well known that the tuning coefficient of a VCSEL increases significantly with the laser DC current [21].…”

Section: Frequency Modulation Characteristicsmentioning

confidence: 99%

Spectral and modulation properties of a largely tunable MEMS-VCSEL in view of gas phase spectroscopy applications

Schilt¹,

Zogal

Kögel

et al. 2010

Appl. Phys. B

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An extensive characterization of the spectral properties of a largely tunable laser in the 1.56-µm spectral range is reported. This device combines a vertical-cavity surface-emitting laser (VCSEL) with a micro-machined (MEMS) Bragg mirror in a very compact arrangement. The large tunability obtained by an electro-thermal actuation of the MEMS mirror makes this device very attractive for high-resolution spectroscopy. Relevant laser parameters for the implementation of wavelength modulation spectroscopy techniques in gas sensing, such as tuning and modulation properties, are presented. A preliminary gas spectroscopy experiment performed with this laser is also shown.

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Frequency tuning of long-wavelength VCSELs

Cited by 23 publications

References 11 publications

A precision fiber Bragg grating interrogation system using long-wavelength vertical-cavity surface-emitting laser

A precision fiber Bragg grating interrogation system using long-wavelength vertical-cavity surface-emitting laser

Accelerated endurance test of single-mode vertical-cavity surface-emitting lasers under vacuum used for a scalar space magnetometer

Spectral and modulation properties of a largely tunable MEMS-VCSEL in view of gas phase spectroscopy applications

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