Noise-immune cavity-enhanced optical heterodyne molecular spectrometry on N_2O 1283  μm transition based on a quantum-dot external-cavity diode laser

Chen, Tzu-Ling; Liu, Yi-Wei

doi:10.1364/ol.40.004352

Cited by 7 publications

(4 citation statements)

References 36 publications

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“…A variety of tunable lasers, including an external cavity diode laser (ECDL) (Bell et al, 2009;Chen and Liu, 2015;Dinesan et al, 2014;Ishibashi and Sasada, 2000;Saraf et al, 2016;van Leeuwen and Wilson, 2004), quantum cascade laser (QCL) (Taubman et al, 2004), optical parametric oscillator (OPO) (Hausmaninger et al, 2015;Talicska et al, 2016;Taubman et al, 2004), quantum-dot laser (Chen and Liu, 2017), distributed feedback laser (DFB) (Foltynow-icz et al, 2010) and whispering-gallery-mode (WGM) laser (Zhao et al, 2017), have been applied to the NICE-OHMS system over the years. The most persistent development of NICE-OHMS has been performed based on erbium-doped fiber lasers (EDFLs), which lase in the near-IR (NIR) region (Ehlers et al, 2012;Schmidt et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Laser frequency stabilization based on a universal sub-Doppler NICE-OHMS instrumentation for the potential application in atmospheric lidar

et al. 2019

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Abstract. Lidar is an effective tool for high-altitude atmospheric measurement in which a weak absorption line for the target gas is selected to ensure a large optical depth. The laser frequency stabilization to the line center is required, and a sub-Doppler (sD) spectroscopy of the target line is preferred as a frequency reference. In this paper, a novel universal sD noise-immune cavity-enhanced optical heterodyne molecular spectroscopy (NICE-OHMS) instrumentation based on a fiber-coupled optical single-sideband electro-optic modulator (f-SSM) for the potential application in atmospheric lidar for different target gases with different types of lasers is reported. The f-SSM can replace all frequency actuators in the system, so as to eliminate the individual design of feedback servos that often are tailored for each laser. The universality of the instrumentation was demonstrated by the alternative use of either an Er-doped fiber laser or a whispering-gallery-mode laser. Then the instruments based on both lasers were used to produce the sD signals of acetylene, which worked as a frequency reference to stabilize the laser. By performing the lockings, relative frequency stabilizations of 8.3×10-13 and 7.5×10-13 at an integration time of 240 s were demonstrated.

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Section: Introductionmentioning

confidence: 99%

Laser frequency stabilization based on a universal sub-Doppler NICE-OHMS instrumentation for the potential application in atmospheric lidar

et al. 2019

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“…A variety of tunable lasers, including external cavity diode laser (ECDL) (Bell et al, 2009;Chen and Liu, 2015;Dinesan et 25 al., 2014;Ishibashi and Sasada, 2000;Saraf et al, 2016;van Leeuwen and Wilson, 2004), quantum cascade laser (QCL) (Taubman et al, 2004), optical parametric oscillator (OPO) (Hausmaninger et al, 2015;Talicska et al, 2016;Taubman et al, 2004), quantum-dot laser (Chen and Liu, 2017), distributed feedback laser (DFB) and whispering gallery mode (WGM) laser (Zhao et al, 2017), have been applied to the NICE-OHMS system over the years. The most persistent development of NICE-OHMS has been performed based on erbium-doped fiber lasers (EDFL), which lase in the 30 near-IR (NIR) region Schmidt et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Laser frequency stabilization based on an universal sub-Doppler NICE-OHMS instrumentation for the potential application in atmospheric Lidar

Zhou¹,

Liu²,

Guo³

et al. 2018

Preprint

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Abstract. Lidar is an effective tool for high altitude atmospheric measurement in which a weak absorption line for the target gas is selected to ensure a large optical depth. The laser frequency stabilization to the line center is required and a sub-Doppler (sD) spectroscopy of the target line is preferred as a frequency reference. In this paper, a novel universal sD NICE-OHMS instrumentation based on a fiber coupled optical single-sideband electro-optic-modulator (f-SSM) for the potential application in atmospheric Lidar is reported. The f-SSM can replace all frequency actuators in the system, so as to eliminate the individual design of feedback servos that often are tailored for each laser. The universality of the instrumentation was demonstrated by the alternative use of either an Er-doped fiber laser or a whispering gallery mode laser. Then the instruments based on both lasers were used to produce the sD signals of acetylene which worked as a frequency reference to stabilize the laser. By performing the lockings, relative frequency stabilizations of 8.3 × 10−13 and 7.5 × 10−13 at integration time of 240 s were demonstrated.

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“…The NICE-OHMS experimental setup includes a high finesse cavity and a quantum-dot external cavity diode laser (QD-ECDL) operated in a Littrow configuration. The details of the QD-ECDL can be referred in our previous work [24]. The left figure of Fig.…”

mentioning

confidence: 99%

“…In order to lock the laser on the high finesse cavity with a 10 kHz narrow linewidth, the whole QD-ECDL system and the fiber EOM are placed in a protection case on a granite slab to reduce environmental noises to improve passive laser frequency stability [24]. Then the active locking is achieved by the PDH error signal fed through the locking servo loop with a servo bandwidth wider than 650 kHz.…”

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confidence: 99%

Sub-Doppler resolution near-infrared spectroscopy at 128 μm with the noise-immune cavity-enhanced optical heterodyne molecular spectroscopy method

Chen

Liu

2017

Opt. Lett.

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We report on the Doppler-free saturation spectroscopy of the nitrous oxide (N 2 O) overtone transition at 1.28 µm. This measurement is performed by the noise-immune cavity-enhanced optical heterodyne molecular spectroscopy (NICE-OHMS) technique based on the quantum-dot (QD) laser. A high intra-cavity power, up to 10 W, reaches the saturation limit of the overtone line using an optical cavity with a high finesse of 113,500. At a pressure of several mTorr, the saturation dip is observed with a full width at halfmaximum of about 2 MHz and a signal-to-noise ratio of 71. To the best of our knowledge, this is the first saturation spectroscopy of molecular overtone transitions in 1.3 µm region. The QD laser is then locked to this dispersion signal with a stability of 15 kHz at 1 sec integration time. We demonstrate the potential of the N 2 O as markers because of its particularly rich spectrum at the vicinity of 1.28-1.30 µm where lies several important forbidden transitions of atomic parity violation measurements and the 1.3 µm O-band of optical communication. http://dx.doi.org/10.1364/ao.XX.XXXXXX High-resolution spectroscopy plays an essential role in widespread applications in sciences including astronomy, physics, chemistry and biology. The Doppler-free spectrum provide a significant improvement in spectroscopic resolution relative to Doppler-broadened line shapes. Few results were reported in near-infrared (NIR) region by means of saturation spectroscopy, because a relatively high power is required. However, NIR is an important spectral range not only offer laboratory comparisons for the research on astrophysical phenomena [1,2], but also to provide a powerful analytical tool to the studies of molecular rotation-vibration structure [3]. While most atmosphere molecules such as CO 2 , CO, CH 4 , C 2 H 2 , H 2 O, HF, and N 2 O all present strong fundamental vibrational transitions beyond 2 µm, the overtone transitions falling in the 1-2 µm range are one to two orders of magnitude less intense [3][4][5]. They are often with integrated line strengths (<10 −23 cm −1 /molecule cm −2 ). Although it can be observed using highly sensitive techniques, such as cavity-ring down spectroscopy, most of the results are Doppler-limited. So far, the Doppler-free saturation spectrum in the 1.5 µm region has been successfully observed using cavitybased spectroscopy [6,7], but only the Doppler-limited spectrum has been reported in the 1.1 µm-1.3 µm band [8][9][10], which is with even smaller dipole moments .On the other hand, considerable progress in QD lasers engineering development results in the broad availability of efficient InGaAs QD diode applied for NIR laser sources. Particularly in the 1.1-1.3 µm band, QD diode based lasers have demonstrated their superior performances in several respects in comparison with traditional quantum-well based diode lasers [11]. Many important applications in this spectral range require stabilized laser sources, such as the coarse wavelength division multiplexing (CWDM) technology at 1.3 µm [12], ...

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Noise-immune cavity-enhanced optical heterodyne molecular spectrometry on N_2O 1283 μm transition based on a quantum-dot external-cavity diode laser

Cited by 7 publications

References 36 publications

Laser frequency stabilization based on a universal sub-Doppler NICE-OHMS instrumentation for the potential application in atmospheric lidar

Laser frequency stabilization based on a universal sub-Doppler NICE-OHMS instrumentation for the potential application in atmospheric lidar

Laser frequency stabilization based on an universal sub-Doppler NICE-OHMS instrumentation for the potential application in atmospheric Lidar

Sub-Doppler resolution near-infrared spectroscopy at 128 μm with the noise-immune cavity-enhanced optical heterodyne molecular spectroscopy method

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