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Blue LED Light Source - Black-LED-515

The compact fiber-coupled high power Green LED light source module at 515 nm is an effective replacement of lasers and lamps in many applications, such as spectroscopy and fluorometry. This member of the modular OptiBlocks family provides up to 10 mW of CW power at fiber output. The LED driver supports external modulation, CW or chopping mode operation with preset frequency and duty cycle.

black led


  • High Power
  • Speckle free
  • TTL external / internal modulation
  • Excellent for fluorescence excitation
  • LED spectrum can be narrowed by optional band pass filter
  • Compact and robust head: 50mm x 50mm x 40mm
  • Reciprocal SMA, FC or ST fiber connection
  • Precisely adjustable power
  • Long life (no lamp replacement required)
  • Rapid warm up time

    Replacement of:
  • Green 532 nm DPSS lasers
  • 514 nm Argon gas lasers
  • Lamps


  • Fluorescence spectroscopy
  • Bioanalysis


Peak wavelength: 515 nm Typ.
The Peak wavelength is current and temperature dependent. Typical values at room temperature are 520 nm at 50% of max. output power and 514 nm at 100% max output power.
Spectrum half width: 36 nm Typ.

Power Output:

Black-LED power output is limited by the reciprocal fiber characteristics. Larger core and higher NA will increase maximum power output, and vice versa.
The table below shows a few examples of the CW output power at different fibers:

Fiber brandFiber type*¹ NAFiber Core Diameter Output Power Typical*²
Toray PGR-FB1000 or Mitsubishi Rayon SH4001 POF0.51000 µm 10 mW
Toray PGR-FB750POF 0.5750 µm 6.4 mW
Thorlabs FT800UMT Silica High OH 0.39800 µm 6.1 mW
Thorlabs BFH48-600 Silica High OH   0.48   600 µm 4.3 mW
 *1: POF - Polymer Optical Fiber. Fiber length ~1m.
 *2: The measurement done by Ophir Nova II power meter equipped with PD300-UV head.
 The wavelength was set at 515 nm. The values are for non filtered Black-LED-515.

 Optical output connector

 The Black-LED is available with SMA, FC or ST reciprocal fiber connector


 Black-LED head:

 50mm x 50mm x 50mm (W x H x L)

 Benchtop Black-LED Current Controller:

 BLCC-2  75mm x 40mm x 120mm (W x H x L) without key switch and other extrusions

 Driver power adaptor:

 60mm x 35mm x 100mm (W x H x L)

 Electrical Specifications:

 Benchtop Black-LED Current Controller:

 BLCC-2  Input: 24VDC 1A

 Power Adaptor:

 Input: 100-240VAC 1.0A 47-63Hz
 Output: 22-27V 1.1A 25Wmax