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Conduction-cooled QCW stacked array

QCW diode bars & stacks

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Conduction-cooled QCW stacked array

QD-Q1yzz-A, QD-Q1yzz-B, QD-Q1yzz-BS, QD-Q1yzz-G and QD-Q1yzz-K are conductively cooled laser diode arrays. These stacked arrays can be built with 2 to 19 diode bars of 60 W QCW to 400 W QCW. The laser arrays benefit from a fully developed technology, designed for improved efficiency (up to 65 % @ 808 nm and 72 % @ 940 nm) and reliable operation (above 10 billion shots). 

  • QCW operation
  • 60 W to 400 W QCW per diode bar
  • Standard wavelength 795 to 830 nm, 880 nm, 9xx nm
  • Space qualified technology (vacuum, irradiation)
  • Low thermal resistance assembly package
  • Mechanically robust, shock and vibration resistant
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ParametersQD-Qxyzz-AQD-Qxyzz-BQD-Qxyzz-BSQD-Qxyzz-GQD-Qxyzz-K
Number of diode bars (zz =) 2 to 6 1 to 12 1 to 19 1 to 16 1 to 8
Pitch between diode bars (µm) 330 to few 1000s
Emitting area (mm²) 10 x (zz - 1)* pitch
QCW optical power per diode bar (W) up to 400
QCW Optical power (W) up to 2400 up to 4400 up to 7000 up to 6000 up to 1600
Operating current (A)
@ 100 W / bar
95 Typ. - 115 max.
Operating current (A)
@ 200 W / bar
185 Typ. - 215 max.
Operating current  (A)
@ 400 W / bar
370 Typ. - 390 max.
Operating voltage (Volt) < 2 / bar
Total efficiency (%) 58 % @ 808 nm
65 % @ 940/980 nm
Wavelength (nm) 790 to 980
Spectral width(nm) (FWHM) 3
Beam divergence (°C) (FWHM) 9 x 36

Specifications @ 25°C

Notes :

  • Standard Polarisation: TM or TE mode @ 808 nm, TE @ 9xx nm
  • Variation of wavelength with temperature is approximately 0.26 nm/°C
  • Tolerance on wavelength is +/- 3 nm, +/- 1,5 nm upon request
  • Double or triple Quantum Well bars available (ex: 400 W @ 200 A & 4 V)
  • Specifications are for nominal lifetime > 1. 109 pulses (for 200 µs pulse width)

QD-Q1yzz-A, QD-Q1yzz-B, QD-Q1yzz-BS, QD-Q1yzz-G and QD-Q1yzz-K are conductively cooled laser diode arrays. These stacked arrays can be built with 2 to 19 diode bars of 60 W QCW to 400 W QCW.

The laser arrays benefit from a fully developed technology, designed for improved efficiency (up to 65 % @ 808 nm and 72 % @ 940 nm) and reliable operation (above 10 billion shots).

Packaging and heat-sinks have been optimized to reduce overall thermal resistance. Using AuSn hard solder, the stacks are assembled in a compact and rugged package. This allows easy connection to a heat exchanger to achieve excellent thermal control.

These stacks have been approved for space and defense applications through environmental testing (life-tests, endurance under vacuum, irradiations, shock, etc.)

These stacks are ideal for different applications under severe conditions: pumping rods or slabs in solid state lasers or illuminators... for aerospace, industrial and space applications.

  • Ablation
  • Engraving
  • Flat panel display
  • LIBS
  • LIDAR
  • LIF
  • Surface treatment
  • Spectroscopy
  • Marking
  • Shockwave generation
  • Pumping
  • Remote sensing
  • Pointer
  • Designator
  • Illuminator
  • Range finder
  • Defense & Security
  • etc.
  • For a period of one (1) year from the date of delivery as stated in Article 4 hereabove, the Vendor warrants the Products against faulty materials and faulty workmanship except parts and components worn out during the normal use of the Products. During the above mentioned period, the Vendor's obligations shall be limited, at the Vendor's option, to the replacement or repair of the Product recognized as faulty by the Vendor which must be promptly return to the Vendor, carriage paid, together with full details of failure and certified. The repaired or new parts will be delivered free of charge to the place of delivery stated in Article 4.
  • The Warranty of the Vendor will apply to the Products which have not been modified by the Buyer or a third party and which have been stored, installed, protected, maintained and used in accordance with the Vendor's specifications and instructions. Such warranty shall not apply in case of normal wear and tear or if the Products have been involved in an accident or subjected to any kind of misuse or detrimental exposure and in case of bad conditions of storage; or 
  • if the Products have been submitted to abnormal conditions (mechanical, electrical or thermal) during installation or use; or, 
  • if the defectiveness of the Products has resulted from exceeding the maximum values for usage (temperature limit, maximum voltage, etc...) defined by Vendor, from an incorrect choice of application or from a design made by the Buyer.
  • Notwithstanding the foregoing, Vendor gives no warranty whatsoever with regard to experimental, developmental or non-qualified Products.
    The foregoing constitutes the whole and sole warranty given by the Vendor and shall be in lieu of any other warranty; in particular, the Vendor does not warrant the suitability or fitness of the Products for a particular purpose, nor that the functions of the Products may be used in any application or combination which the Buyer may choose.
Laser diodes accessories

Driver, cooling, etc. available on request.

Contact :
info@quantel-diodes.com