A range of compact Visible Laser Modules (cVLMs) is offered by QD Laser based on their quantum well DFB/SOA technology.
The QLD0593 series feature Second Harmonic Generation (SHG) via waveguide PPLN (Periodically-Poled Lithium Niobate) to produce freespace outputs at 532nm, 561nm and 594nm with power levels of 5mW, 20mW, 30mW and 50mW (depending on the wavelength).
Fibre-coupled versions, the QLD0561 series, are available with options of singlemode or polarisation maintaining fibre and a choice of FC/PC or FC/APC connector.
The use of a frequency-doubled DFB/SOA source enables extremely stable single frequency output in both CW and directly modulated operation. Modulation rates of up to 100MHz can be achieved as well as extinction ratios of up to 40dB.
This ability to deliver modulation without spectral disturbance means the QD Laser modules are ideal for video applications as well as many life science applications and the narrow spectral linewidth is also suitable for microscopy, spectroscopy and sensing systems.
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Overview: 532, 561 & 594 nm compact visible laser modules |
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White Paper: 532, 561 & 594 nm compact visible laser modules |
QDL have developed a CW/nanosecond/picosecond pulsed driver board, QBB0502, which can be used with both the freespace QLD0593 or fibre-coupled QLD0561 laser modules. An operation guide for this driver is available from the table below, along with data sheets for the QLD0593 and QLD0561 series and a white paper discussing the technology.
| Part Number |
Peak Wavelength |
Output Power (CW Operation) |
Peak Power (Gain-Switched) |
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| Freespace Visible Laser Modules | ||||
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QLD0593-3220(-11) QLD0593-3230(-11) QLD0593-3230(-11)-G50 QLD0593-3250(-11) QLD0593-3250(-11)-G50 |
532±2nm (±1nm option) |
20mW 30mW 30mW 50mW 50mW |
N/A N/A 50mW N/A 50mW |
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QLD0593-6120(-11) QLD0593-6130(-11) QLD0593-6130(-11)-G50 QLD0593-6150(-11) QLD0593-6150(-11)-G50 |
561±2nm (±1nm option) |
20mW 30mW 30mW 50mW 50mW |
N/A N/A 50mW N/A 50mW |
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QLD0593-9405(-11) QLD0593-9405(-11)-G20 |
594±2nm (±1nm option) |
5mW 5mW |
N/A 20mW |
| NOTE: (-11) indicates optional mounting plate | ||||
| Fibre-Coupled Visible Laser Modules | ||||
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QLD0561-3215-xy QLD-0561-3220-xy QLD0561-3220-xy-G25 QLD0561-3225-xy |
532±2nm (±1nm option) |
15mW 20mW 20mW 25mW 25mW |
N/A N/A 25mW N/A 25mW |
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QLD0561-6115-xy QLD-0561-6120-xy QLD0561-6120-xy-G25 QLD0561-6125-xy |
561±2nm (±1nm option) |
15mW 20mW 20mW 25mW 25mW |
N/A N/A 25mW N/A 25mW |
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QLD0561-9402-xy QLD0561-9402-xy-G10 |
594±2nm (±1nm option) |
2mW 2mW |
N/A 10mW |
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NOTE: xy = Fibre Options x = Connector Type 2: FC/PC 3: FC/APC y = Fibre Type 3: SMF, 245µm coating 4: PMF, 245µm coating 5: SMF, Nufern S-405-XP 6: PMF, Nufern PM-S405-XP |
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QBB0502: User Manual - CW / ns / ps driver for QLD0593 & QLD0561 modules | |||
In addition to the 532nm, 561nm and 594nm commercially-available product, QD Laser are actively developing new lasers operating at 488nm, 552nm and 588nm - expected to be available in sample quantities in 2025.
A family of integrated CW driver models "Lantana" has also been introduced - more information on these products can be found using the links to the right of this page.
For further information and updates on availability of this exciting technology please contact APT
