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1854nm DFB Single Mode / Single Frequency Laser Diode, 3mW

  • Eblana 1854nm Butterfly Laser Diode
  • Eblana 1854nm 4mW Laser Diode
  • Eblana Photonics Laser Diode 1854nm 4mW
  • 1854nm Butterfly Laser Diode Pinout
  • Butterfly Laser Diode Driver for 1854nm Moisture Sensing

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sku / item#: RLS/EP1854
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Key Features
  • Specifically Designed for H2O Detection
  • DFB Laser / Single Frequency / Single Mode
  • Tunable by Either Temperature or Current
  • Single Mode Fiber, FC/APC Connector (PMF available on request)
  • Available Mounted and Calibrated in a DX-1 Low Noise Current & Temperature Controller (request details)

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Optical Specifications
  • Center Wavelength: 1854 nm
  • Available Center Wavelengths: 1850 nm - 1915 nm
  • Wavelength Tolerance: +/- 1 nm
  • CW Output Power (typical): 3 mW
  • SMSR (typical): >40 dB
  • Optical Linewidth (typical): < 2 MHz
  • Temperature Tuning Coefficient (typical): 0.1 nm/°C
  • Current Tuning Coefficient (typical): 10 pm/mA
  • Slope Efficiency (typical): 0.05 mW/mA
Electrical Specifications
  • Operating Current: 80 mA
  • Forward voltage: < 1.6 Volts
  • Threshold Current (typical): 25 mA
  • TEC Current: < 1 Amps
Laser Diode Package / Fiber Pigtail / Connector
  • Butterfly Package
  • Integrated TEC & 10K Thermistor
  • Integrated Optical Isolator
  • Single Mode Fiber, FC/APC Connector (PMF available on request)

Product Overview:

1854nm DFB Single Mode / Single Frequency Laser Diode, 3mW

Eblana's DFB laser is built using discrete-mode (DM) technology, delivering a cost-effective laser diode with mode-hop free tuneability, excellent SMSR, and narrow linewidth.

Eblana Photonics EP1854 laser diode, available in a range from 1845 nm - 1920 nm, is specifically designed for sensitive detection of water and water vapor ( H2O ). The butterfly package is integrated with TEC and thermistor for precision temperature and wavelength control.

1854 nm for Sensing Water and Water Vapor ( H2O )

Eblana's 1854 nm DM Laser delivers reliable, mode-hop free, operation over a wide wavelength tuning range. These single longitudinal mode lasers are designed specifically for gas sensing applications targeting water and water vapor sensing applications ( H2O ). The narrow linewidth output improves application performance across a wide range of operating conditions.

Available Preconfigured Driver Maximizes Cost Effectiveness

Eblana's proprietary DX-1 incorporates the butterfly laser module with an integrated current driver and TEC controller. Designed for ease of operation, it is the ideal platform for high stability gas detection or remote sensing. The driver module is compact, at 72.5 mm x 50 mm x 28 mm, to fit within your sensing system hardware and simplifies your design work considerably.

Features of the DX-1 Laser Diode Driver
    - Integrated driver and TEC controller
    - PM/SMF coupled with FC/APC
    - Built-in optical isolator
    - Powered by +5 V DC source

Proper Handling and Operation of Diode Lasers

Diode lasers are highly susceptible to damage from ESD and from temperatures exceeding their specified safe operating range. The user is advised to use care and proper ESD safety practices when handling them to avoid damage to the laser. A properly rated low noise current source, a low thermal resistance mount and a temperature controller should be used for optimal device performance and reliability.

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