Low Power Consumption Substrate-Emitting DFB Quantum Cascade Lasers

In the present work, an ultra-low power consumption substrate-emitting distributed feedback (DFB) quantum cascade laser (QCL) was developed. The continuous-wave (CW) threshold power dissipation is reduced to 0.43 W at 25 °C by shortening the cavity length to 0.5 mm and depositing high-reflectivity (HR) coating on both facets. As far as we know, this is the recorded threshold power dissipation of QCLs in the same conditions. Single-mode emission was achieved by employing a buried second-order grating. Mode-hop free emission can be observed within a wide temperature range from 15 to 105 °C in CW mode. The divergence angles are 22.5o and 1.94o in the ridge-width direction and cavity-length direction, respectively. The maximum optical power in CW operation was 2.4 mW at 25 °C, which is sufficient to spectroscopy applications.

• Publication year

  2017

• Venue

  Nanoscale Research Letters

• Publication date

  2017-09-02

• Fields of study

  Materials Science, Physics, Medicine, Engineering

• Identifiers
  DOI 10.1186/s11671-017-2281-8PMID 28866815PMCID 5581747
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

• Two-photon imaging through graded-index multi-mode fiber

  2016cited by this paper
• High efficiency, single-lobe surface-emitting DFB/DBR quantum cascade lasers.

  2016cited by this paper
• Coded excitation using periodic and unipolar M-sequences for photoacoustic imaging and flow measurement.

  2016cited by this paper
• Development of Low Power Consumption DFB Quantum Cascade Lasers

  2015cited by this paper
• High performance, low dissipation quantum cascade lasers across the mid-IR range.

  2015cited by this paper
• Mode and Polarization Multiplexing in a Si Photonic Chip at 40Gb/s Aggregate Data Bandwidth

  2015cited by this paper
• High performance , low dissipation quantum cascade lasers across the midIR range

  2015cited by this paper
• Coupled ridge waveguide distributed feedback quantum cascade laser arrays

  2015cited by this paper
• Regrowth-free single-mode quantum cascade lasers with power consumption below 1 W

  2014cited by this paper
• Mid-infrared spectroscopy for gases and liquids based on quantum cascade technologies.

  2014cited by this paper
• 1.8-W Room Temperature Pulsed Operation of Substrate-Emitting Quantum Cascade Lasers

  2014cited by this paper
• Surface emitting quantum cascade lasers operating in continuous-wave mode above 70 °C at λ ∼ 4.6 μm

  2013cited by this paper
• High-performance uncooled distributed-feedback quantum cascade laser without lateral regrowth

  2012cited by this paper
• Continuous wave operation of distributed feedback quantum cascade lasers with low threshold voltage and low power consumption

  2012cited by this paper
• High-Power Surface-Emitting Surface-Plasmon-Enhanced Distributed Feedback Quantum Cascade Lasers

  2012cited by this paper
• Linearized Downconverting Microwave Photonic Link Using Dual-Wavelength Phase Modulation and Optical Filtering

  2011cited by this paper
• Optimizing facet coating of quantum cascade lasers for low power consumption

  2011cited by this paper
• 2.4 W room temperature continuous wave operation of distributed feedback quantum cascade lasers

  2011cited by this paper
• Cavity Length Scaling of Quantum Cascade Lasers for Single-Mode Emission and Low Heat Dissipation, Room Temperature, Continuous Wave Operation

  2011cited by this paper
• High-temperature continuous-wave operation of low power consumption single-mode distributed-feedback quantum-cascade lasers at λ∼5.2 μm

  2009cited by this paper
• Free-space optical data link using Peltier-cooled quantum cascade laser

  2001cited by this paper
• Dispersion-based differential wavelength measurements for Bragg grating sensors

  2001cited by this paper
• Sensitive absorption spectroscopy with a room-temperature distributed-feedback quantum-cascade laser.

  1998cited by this paper

• 低功耗红外量子级联激光器研究进展（特邀）

  2025cites this paper
• Sandwiched dual seed sources master oscillator power amplifier quantum cascade lasers.

  2024cites this paper
• High performance distributed feedback quantum cascade laser emitting at λ∼6.12um.

  2022cites this paper
• Ultralow power consumption of a quantum cascade laser operating in continuous-wave mode at room temperature.

  2020cites this paper