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780nm DFB Single Mode / Single Frequency Laser Diode, 4mW

  • 780nm DFB Butterfly Laser for Frequency Standards
  • 780nm 12mW Laser Diode
  • Eblana 780nm 12mW Laser Diode
  • Eblana Photonics 780nm 12mW Laser Diode
  • Laser Diode Driver for 780nm Butterfly Laser Diode

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sku / item#: RLS/EP780
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Key Features
  • Specifically Designed for Frequency Standards (Rb Atomic Clocks) and Interferometry
  • DFB Laser / Single Frequency / Single Mode / Proprietary Monolithic Design without External Cavity
  • 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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MODEL RLS/EP780
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Optical Specifications
  • Center Wavelength: 780 nm
  • Available Center Wavelengths: 776 nm - 784 nm
  • Wavelength Tolerance: +/- 1nm
  • CW Output Power (typical): 4 mW (out of fiber)
  • SMSR (typical): >40 dB
  • Temperature Tuning Coefficient (typical): 0.06 nm/°C
  • Current Tuning Coefficient (typical): 6 pm/mA
  • Slope Efficiency (typical): 0.07 mW/mA
Electrical Specifications
  • Forward Current (typical): 150 mA
  • Forward voltage: < 2.5 Volts
  • Threshold Current (typical): 60 mA
  • TEC Current: < 1.2 Amps
Laser Diode Package / Fiber Pigtail / Connector
  • Butterfly Package with Optical Isolator
  • Integrated TEC & 10K Thermistor
  • Single Mode Fiber, FC/APC Connector (PMF available on request)

Product Overview:

780nm DFB Single Mode / Single Frequency Laser Diode, 4mW

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 EP780 laser diode, available at a range of wavelengths from 776 - 784nm, is perfectly suited for use in Rb-based atomic clocks and for interferometry applications.

The fiber-coupled butterfly package is integrated with TEC and thermistor for precision temperature and wavelength control.

780nm for Rubidium-Based Atomic Clocks

Eblana's 780nm DM Laser delivers reliable, mode-hop free, operation over a wide wavelength tuning range. These single longitudinal mode lasers are designed specifically for Rubidium-based atomic clocks and spectrometry. The narrow linewidth output is suitable for high performance application 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
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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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