532 nm SLM Laser

Item Code: 0532L-41B-NI-NT-NF
DPSSL Free-space
Preliminary
Product specifications are subject to change, delivery time is less predictable.
Full production
Product specifications are stable. Delivery time is predictable.
Replacement in due course
The product is to be replaced. Please contact us regarding forseeable changes
Not for new designs
The product is to be discontinued. Please contact us for production plans.
Orders still accepted, deliveries still possible
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Description

Green single-frequency laser at 532 nm is one of the most important lines for Raman excitation. Very narrow-spectrum combined with good beam quality makes this laser perfect for scanning micro Raman applications.
The 532 nm SLM laser is a very compact DPSS module for portable diagnostic applications, RGB holography, as well as various scientific setups. The module contains a powerful TEC cooler, microprocessor-based electronics, a USB control interface, and many useful accessories for ease of integration. In portable applications, this laser can be powered from conventional USB power banks. For fiber delivery, please check MM, SM, PM fiber output options. Higher output power is available on request.


Note:
In optical systems with strong back-reflections (e.g. more than 10%), the laser does not have to be protected by using an optical isolator, unless high laser operation stability is required. Typical applications include interferometry, confocal microscopy (especially working with reflective samples), etc.

Last edited on: 25 March 2024
Parameter Minimum Value Typical Value Maximum Value
 Central wavelength, nm 531.9 532.0 532.1
 Spectral line width FWHM, MHz 1 - 2 6
 Output power, mW 2 - 100 150
 Power stability, % (RMS, 8 hrs) 3 0.01 0.05 0.2
 Power stability, % (peak-to-peak, 8 hrs) 4 0.05 0.2 1
 Intensity noise, % (RMS, 20 Hz to 20 MHz) 5 0.3 0.5 1
 Residual IR wavelength contrast, dB - 20 -
 Side-mode suppression ratio (SMSR), dB - 70 -
 Longitudinal modes - Single -
 Transversal modes - TEM00 -
 Beam width (1/e2), mm 6 0.8 1 1.2
 Beam height (1/e2), mm 0.8 1 1.2
 Horizontal beam divergence, mrad 0.6 0.9 1.4
 Vertical beam divergence, mrad 0.6 0.9 1.4
 M² horizontal axis - 1.05 1.4
 M² vertical axis - 1.05 1.4
 M² effective - 1.05 1.3
 Polarization direction 7 - Vertical -
 Polarization contrast 500 2000 -
 Control interface type 8 - UART -
 Operation mode 9 - APC (CW) -
 Modulation bandwidth, MHz 10 - N/A -
 Input voltage, VDC 4.8 5 5.3
 Input current, A - 5 -
 Max. power consumption, W 5 15 25
 Heat-sinking requirement, °C/W - 0.5 -
 Optimum heatsink temperature, °C 18 25 32
 Warm up time, mins (cold start) 1 3 5
 Temperature stabilization - Internal TEC -
 External fan control - Yes -
 Overheat protection - Yes -
 Storage temperature, °C (non-condensing) -10 - 50
 Beam height from the base, mm 9.9 10.4 10.9
 Dimensions (WxDxH), mm 11 - 50 x 30 x 18 -
 Net weight, kg 0.1 0.12 0.14
 Laser safety class - 3B -
 RoHS - Yes -
 CE compliance - - General Product Safety Directive (GPSD) 2001/95/EC
- (EMC) Directive 2004/108/EC
-
 OEM lasers are not compliant with - IEC60825-1:2014 (compliant using additional accessories) -
 Warranty, months (op. hrs) 12 - 14 (10000) -
 Country of origin - Lithuania -
 Spectral line width FWHM, pm 13 - 0.002 0.005

1 Measured using HighFinesse LineWidth Analyzer LWA-10k having 10 kHz resolution. Linewidth Analyzer testing is not provided for each laser being manufactured, the standard test is OSA measurement with 20-30 pm resolution instead.

2 The optical power of SLM lasers shall not be tuned and SLM performance is not guaranteed at power ratings other than the factory preset. However, the power setting capability is not disabled. External attenuators are recommended.

3 The long term power test is carried out at constant laser body temperature (+/-0.1 ‎°C) using an optical power meter with an input bandwidth of 10 Hz. The actual measurement rate has a period of about 20 seconds to 1 minute.

4 The long term power test is carried out at constant laser body temperature (+/-0.1 ‎°C) using an optical power meter with an input bandwidth of 10 Hz. The actual measurement rate has a period of about 20 seconds to 1 minute.

5 Noise level is measured with a fast photodiode connected to an oscilloscope. The overall system bandwidth is from 2 kHz to 20 MHz.

6 Beam width and height are measured at 0.4 m from output aperture.

7 For lasers without integrated optical isolators.

8 Break-out-boxes AM-C8 and AM-C3 can be used for conversion of UART communication to either USB or RS232.

9 APC - Automatic Power Control.

10 SLM lasers shall not be modulated - use external modulators instead.

11 Excluding control interface pins and an output window/fiber assembly.

12 Whichever occurs first. The laser has an integrated operational hours counter.

13 Converted from bandwidth value.

Typical spectrum

Typical spectrum of 0532 nm DPSS laser. Measured with 20 pm resolution.

Spectrum of 532 nm SLM Laser
Drawing

The key dimensions of a free-space MatchBox.

Drawing of 532 nm SLM Laser
Typical Near Field

Typical near field (0.45 m from output aperture) beam profile. Circular beam of a 0532 nm DPSS laser.

Near field beam profile of 532 nm SLM Laser
Typical Far Field

Typical far field (1 m from output aperture) beam profile. Circular beam of a 0532 nm DPSS laser.

Far field beam profile of 532 nm SLM Laser
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