Description

The DAYY Photonics Corporation introduces its advanced cooled Narrow Linewidth Laser (NLL), meticulously engineered for precision and stability. Encased in a robust 14-pin BTF package, this laser is part of the Optical Spectral Engine (OSE6) family. It is designed with a proprietary external cavity laser architecture that incorporates a built-in fiber Bragg grating. This innovative design ensures a single frequency emission, providing unparalleled stability in lasing wavelength, a remarkably narrow spectral linewidth, and an impressive side mode suppression ratio (SMSR).

The NLL is crafted to deliver exceptional performance, making it an ideal choice for applications requiring high precision and reliability. The laser's narrow linewidth, typically less than 200KHz, ensures a coherence length exceeding 0.5km, which is crucial for maintaining signal integrity over long distances. The device offers a range of wavelength options around 1260nm, 1383nm, 1550nm, 1648nm, 1653nm, and 1665nm, catering to diverse needs across various industries.

With a typical output power of up to 10mW in continuous wave (CW) mode and pulse power reaching up to 50mW, the NLL is engineered for high-performance applications. The laser's excellent relative intensity noise (RIN) of less than -140 dB/Hz for power levels above 10mW ensures minimal signal distortion, enhancing the quality and reliability of the output. Furthermore, the device supports direct intensity modulation up to 600Mbps, offering flexibility and adaptability for dynamic operational environments.

The DAYY Photonics NLL is Telcordia qualified, underscoring its durability and reliability in demanding conditions. The laser's wavelength stability is maintained at ±1 pm, with a typical polarization extinction ratio (PER) of 18 dB, ensuring consistent performance. The ability to specify the lasing wavelength precisely to 1nm and tune it thermally and via current adjustments provides users with exceptional control and customization capabilities.

DAYY Photonics Narrow Linewidth Laser OSE6, 1260-1665nm, High Stability

Specifications

SLED Type: Fiber Coupled
Operating Power (typical): 10 mW
Center Wavelength (typical): 1260 nm
Typical Narrow Linewidth: < 200KHz
Other Linewidth Options: <100Khz, <50Khz, <3Khz
Wavelengths Offered: 1260nm, 1383nm, 1550nm, 1648nm, 1653nm, 1665nm
High Power CW: up to 10mW
Pulse Power: up to 50mW
RIN: < -140 dB/Hz
Typical SMSR: 50 dB
Wavelength Stability: ±1 pm
Typical PER: 18 dB
Direct Intensity Modulation: up to 600Mbps
Wavelength Tuning Thermally: ~20pm/ Degree C
Wavelength Tuning Current: ~0.2pm/mA

Got questions about specs? Use the inquiry form to ask.

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Features

  • Typical Narrow Linewidth: < 200KHz (Coherence length > 0.5km)
  • Linewidth Options: < 100KHz, < 50KHz, < 3KHz
  • Available Wavelengths: 1260nm, 1383nm, 1550nm, 1648nm, 1653nm, 1665nm
  • High Power Output: CW up to 10mW, Pulse up to 50mW (10μs Pulse Width, 1% Duty Cycle)
  • Excellent RIN: < -140 dB/Hz (for power > 10mW)
  • Excellent SMSR: Typical 50 dB
  • Wavelength Stability: ±1 pm
  • Typical PER: 18 dB
  • Direct Intensity Modulation: Up to 600Mbps
  • Telcordia Qualified
  • Precise Wavelength Specification: Can be specified to 1nm
  • Thermal and Current Tuning: Wavelength can be tuned thermally ~20pm/°C and current ~0.2pm/mA
  • Additional Options: Laser driver and temperature controller available with ISB6 module

Applications

Narrow Linewidth Laser Applications

The DAYY Photonics OSE6 cooled Narrow Linewidth Laser is ideal for precision sensing, spectroscopy, fiber-optic measurement, coherent detection, and low-noise optical systems requiring single-frequency emission, high wavelength stability, narrow spectral linewidth, and excellent side-mode suppression.

  • Distributed Temperature Sensing (DTS): Stable narrow linewidth source for long-range fiber-optic temperature monitoring in power cables, pipelines, industrial plants, tunnels, and energy infrastructure.
  • Distributed Acoustic Sensing (DAS): Low phase-noise laser source for coherent fiber sensing systems used in perimeter security, pipeline monitoring, railway monitoring, seismic sensing, and infrastructure diagnostics.
  • Distributed Strain Sensing: Precision laser source for measuring strain changes along optical fiber in bridges, buildings, geotechnical structures, wind turbines, and civil engineering assets.
  • Gas Detection and Trace Gas Sensing: Narrow linewidth operation for high-resolution absorption spectroscopy of gases such as methane, water vapor, and other industrial or environmental gases using wavelengths near 1383 nm, 1648 nm, 1653 nm, and 1665 nm.
  • Methane Detection: Suitable for methane monitoring and leak detection systems, especially around 1653 nm, for oil and gas, landfill monitoring, environmental sensing, and industrial safety applications.
  • Tunable Diode Laser Absorption Spectroscopy (TDLAS): Precision single-frequency laser source for high-sensitivity gas concentration measurements, process analytics, combustion monitoring, and atmospheric research.
  • Cavity Ring-Down Spectroscopy (CRDS): Narrow linewidth and stable wavelength performance for ultra-sensitive optical absorption measurements in laboratory, environmental, and industrial gas analysis.
  • Fiber Laser Seeding: Seed laser for fiber amplifiers and pulsed fiber lasers used in coherent LiDAR, sensing, metrology, and scientific instrumentation.
  • Coherent LiDAR: Low-noise, narrow linewidth laser source for Doppler LiDAR, wind sensing, range detection, velocity measurement, autonomous systems, and atmospheric monitoring.
  • FMCW LiDAR: Stable single-frequency emission for frequency-modulated continuous-wave LiDAR systems requiring long coherence length, precise ranging, and coherent detection.
  • Optical Time-Domain Reflectometry (OTDR): Laser source for fiber fault detection, optical network testing, fiber characterization, and long-distance fiber monitoring.
  • Optical Frequency-Domain Reflectometry (OFDR): Narrow linewidth source for high-resolution fiber characterization, distributed sensing, component testing, and short-to-medium range precision reflectometry.
  • Coherent Optical Communications: Stable optical carrier for coherent transmission experiments, advanced modulation formats, heterodyne detection, and telecom research at 1260 nm and 1550 nm bands.
  • Microwave Photonics: Suitable for microwave generation by optical beat-note signals, photonic RF synthesis, low phase-noise signal generation, and RF-over-fiber systems.
  • Optical Heterodyne Detection: Single-frequency laser source for beat-note measurement, coherent receivers, interferometric sensing, and precision optical frequency comparison.
  • Interferometric Fiber Sensors: Long coherence length source for Mach-Zehnder, Michelson, Fabry-Perot, and Sagnac interferometer-based sensing systems.
  • Hydrophone and Acoustic Sensor Arrays: Narrow linewidth laser for fiber-optic acoustic sensing in marine monitoring, underwater surveillance, seismic exploration, and industrial diagnostics.
  • Fiber Bragg Grating Sensor Interrogation: Stable wavelength source for FBG-based temperature, strain, pressure, vibration, and structural health monitoring systems.
  • Precision Metrology: Low-noise optical source for optical path length measurement, displacement sensing, dimensional metrology, and high-resolution interferometric instruments.
  • Scientific Research and Laboratory Instrumentation: Reliable narrow linewidth source for photonics experiments, spectroscopy platforms, fiber-optic test beds, coherent measurement systems, and laser characterization setups.
  • Optical Component Testing: Test source for evaluating filters, resonators, modulators, fiber devices, photodetectors, optical amplifiers, and integrated photonic circuits.
  • Silicon Photonics and PIC Testing: Stable laser source for characteriza

Frequently Asked Questions

What is the DAYY Photonics OSE6 Narrow Linewidth Laser used for?
The DAYY Photonics OSE6 Narrow Linewidth Laser is designed for applications that require a stable single-frequency laser source, including distributed temperature sensing, gas detection, fiber laser seeding for LiDAR, OTDR, cavity ring-down spectroscopy, and microwave generation using optical beat-note signals.
What linewidth options are available for the OSE6 narrow linewidth laser?
The OSE6 laser offers a typical narrow linewidth of less than 200 kHz, corresponding to a coherence length greater than 0.5 km. Optional linewidth configurations are available below 100 kHz, 50 kHz, and 3 kHz for applications requiring higher spectral purity.
What wavelengths are available for the DAYY OSE6 Optical Spectral Engine?
The OSE6 family is available around key wavelengths including 1260 nm, 1383 nm, 1550 nm, 1648 nm, 1653 nm, and 1665 nm. The lasing wavelength can be specified precisely to within 1 nm, making it suitable for gas sensing, telecom-band measurements, and fiber-optic sensing applications.
How much optical output power does the OSE6 narrow linewidth laser provide?
The OSE6 provides continuous-wave optical output power up to 10 mW and pulsed output power up to 50 mW with a 10 μs pulse width and 1% duty cycle. This makes it suitable for both steady-state sensing and pulsed applications such as OTDR and distributed fiber sensing.
Can the OSE6 laser be directly modulated?
Yes. The OSE6 narrow linewidth laser supports direct intensity modulation up to 600 Mbps. This enables its use in applications requiring fast optical signal modulation without an external modulator, such as sensing, test instrumentation, and optical communication experiments.
What makes the OSE6 laser suitable for coherent sensing and spectroscopy?
The OSE6 uses a proprietary external cavity laser design with a built-in fiber Bragg grating, delivering single-frequency emission, linewidth below 200 kHz, wavelength stability of ±1 pm, typical SMSR of 50 dB, and low relative intensity noise below -140 dB/Hz at power levels above 10 mW. These characteristics are important for coherent detection, high-resolution spectroscopy, and stable laser seeding.
How can the wavelength of the OSE6 narrow linewidth laser be tuned?
The OSE6 wavelength can be tuned thermally at approximately 20 pm per °C and by injection current at approximately 0.2 pm per mA. For stable operation, a compatible laser driver and temperature controller are available with the ISB6 module.

Got more questions? Use the inquiry form to ask the supplier directly.

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