ASE Broadband Light Source + Driver

DenseLight DL-ASE is a series of all- semiconductor low DOP ASE optical sources with a wide selection of wavelengths, covering the entire telecom spectral bands (from O to U). The CW output standard model comes with excellent stability in output power and spectrum. As it operates on direct light generation from Superluminescent principle (SLED), it can be directly intensity modulated. Modulations are available upon request, as well as models to meet your specific needs.

Product Offering

Product Code Center Wavelength Bandwidth Power Power Density Operation Mode Spectral Symmetry (Gaussian) SLED Type Datasheet Enquiry Cart
DL-ASE-CW-CSO193A 1310 nm 32 dB 19 dBm -6.5 dBm/nm CW Yes DL-CS-3452A-FP
DL-ASE-CW-CSE145A 1450 nm 50 dB 14 dBm -7.5 dBm/nm CW Yes DL-CS-44H5A-FP
DL-ASE-CW-CSC117A 1550 nm 60 dB 11 dBm -10 dBm/nm CW Yes DL-CS-5107A-FP
DL-ASE-CW-CSC183A 1550 nm 35 dB 18 dBm -3.5 dBm/nm CW Yes DL-DL-CS5403A-FP
DL-ASE-CW-CSC107A 1550 nm 60 dB 10 dBm -11 dBm/nm IM Yes DL-CS-5107A-FP
DL-ASE-CW-CSC117A 1580 nm 58 dB 11 dBm -15 dBm/nm CW Yes DL-CS 58M7A-FP
DL-ASE-IM-CSCL107A 1580 nm 58 dB 10 dBm -16 dBm/nm IM Yes DL-CS 58M7A-FP
DL-ASE-CW-CSL165A 1600 nm 50 dB 16 dBm -6 dBm/nm CW Yes DL-CS60H5A-FP

Features & Performance:

  • Wide spectral coverage, 1200nm-1700nm
  • Customised ASE design and spectrum  combination
    (e.g. return sensing signal  port, monitoring optical coupler, etc.)
  • CW operation (DL-ASE-CW-Series) or  Direct-modulation operation
    (DL-ASE-  IM-Series)
  • Fiber pigtail or FC receptacle output
  • Improved reliability by integrated optical  isolator
  • Remote optical power enabled function by active-low logic
  • Standard operating temperature: 0°C to  65°C.
  • Extended range -20°C to 70°C
  • Telcordia certification, RoHS Compliance










DL-ASE-IM Series

  • Over temperature protection and internal PCB temperature monitor
  • Pre-bias optical power
  • Analog intensity modulation up to 20MHz
  • Pulse or digital modulation up to 200MHz
  • Optical Output – FC Receptacle

DL-ASE-CW Series

  • Over temperature protection and internal PCB  temperature monitor
  • Active-Low optical power enabled function
  • Extendable Operating temperature up to 70 °C
  • Optical Output – SMF Fiber Pigtail Output















  • Structural Health Monitoring (SHM) – Sensing in gas & oil
  • Test & Measurement
  • Communications
    Affordable gigabit bandwidth fiber-link to homes and business (FTTX), test & measurement for telecom networks
  • Medical applications
    OCT (biopsies-less medical cell imaging, diagnostic imaging), point of use/ handhelds/ non-invasive diagnosis (blood analysis)
  • Energy, oil and gas
    Sensing in gas & oil production, telemetry in electricity distribution
  • Industrial controls
    In-line production process monitoring, 3D metrology and surface metrology, semiconductor fabrication (solar cells), chemical and gas sensing – safety, emission control, security
  • Environmental sensing
    Physical (temp, pressure, strain, vibrations), structural and civil engineering, smart structures, intelligent distributed sensing
  • Defense & security
    Perimeter defense, navigation and guidance – inertia sensing (gyroscope), infrared illumination for surveillance and speckle-free military imaging


Telcordia Quality Assured

DenseLight’s SLEDs successfully passed Telcordia’s GR-468-CORE “Reliability Assurance Requirements for Optoelectronics Devices Used in Telecommunications Equipment”

Passed 5000 hours accelerated-ageing and ripple-aging tests

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We are ready to lead you into the future of light no matter where your business operates.