633 nm SLM Laser (VBG Diode; Free-space)
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Item Code:
0633L-21A-NI-NT-NF
Product status:
Full production
Product specifications are stable. Delivery time is predictable.
Availability:
Description
Single-longitudinal-mode (SLM) 633 nm laser is a replacement for HeNe, where high coherence length and exact center wavelength is needed. This wavelength is also quite popular in Raman spectroscopy. Small footprint and +5VDC (USB typical) operating voltage is exactly what's needed for handheld portable devices. Integrated precision driver electronics ensure low-noise and very stable operation throughout the wide temperature range. 633 nm red radiation features average photon energy. VBG technology delivers a low-cost solution to sophisticated Raman spectroscopy and various metrology needs.
Note:
In optical systems with strong back-reflections (e.g. more than 10%), the laser must be protected by using an optical isolator with at least 20 dB isolation. Typical applications include interferometry, confocal microscopy (especially working with reflective samples), etc. Failure to comply with these requirements will render the warranty void for cases of COD (Catastrophic Optical Damage) of laser diode facets.
Links and Downloads
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Specifications
Last edited on:  2 February 2023
Parameter | Minimum Value | Typical Value | Maximum Value |
---|---|---|---|
 Central wavelength, nm | 632.6 | 632.8 | 632.9 |
 Longitudinal modes | - | Single | - |
 Spectral line width FWHM, pm | - | 0.1 1 | 1 |
 Output power, mW | - | 70 2 | - |
 Side-mode suppression ratio (SMSR), dB | 40 | 50 | 60 |
 Power stability, % (RMS, 8 hrs) | 0.01 | 0.03 3 | 0.25 |
 Power stability, % (peak-to-peak, 8 hrs) | 0.05 | 0.15 4 | 1 |
 Intensity noise, % (RMS, 20 Hz to 20 MHz) | 0.05 | 0.2 5 | 0.6 |
 Transversal modes | - | TEM00 | - |
 Beam width (1/e2), mm | - | 1 6 | 1.3 |
 Beam height (1/e2), mm | - | 1.2 | 1.8 |
 Horizontal beam divergence, mrad | - | 1.2 | 1.5 |
 Vertical beam divergence, mrad | - | 0.4 | 0.8 |
 M² horizontal axis | - | 1.2 | 1.4 |
 M² vertical axis | - | 1.3 | 1.6 |
 M² effective | - | 1.3 | 1.6 |
 Polarization direction | - | Horizontal 7 | - |
 Polarization contrast | 1000 | 1500 | 5000 |
 Control interface type | - | UART 8 | - |
 Operation mode | - | APC (CW) | - |
 Modulation bandwidth, MHz | - | N/A 9 | - |
 Input voltage, VDC | 4.8 | 5 | 5.3 |
 External power supply requirement | - | +5 V DC, 1.5 A | - |
 Dimensions (WxDxH), mm | - | 50 x 30 x 18 10 | - |
 Beam height from the base, mm | 9.9 | 10.4 | 10.9 |
 Heat-sinking requirement, °C/W | - | 1 | - |
 Optimum heatsink temperature, °C | 15 | 20 | 30 |
 Warm up time, mins (cold start) | 0.2 | 1 | 2 |
 Temperature stabilization | - | Internal TEC | - |
 Overheat protection | - | Yes | - |
 Storage temperature, °C (non-condensing) | -10 | - | 50 |
 Net weight, kg | 0.1 | 0.12 | 0.14 |
 Max. power consumption, W | 0.4 | 2 | 10 |
 Warranty, months (op. hrs) | - | 14 (10000) 11 | - |
 RoHS | - | Yes | - |
 CE compliance | - | - General Product Safety Directive (GPSD) 2001/95/EC - (EMC) Directive 2004/108/EC |
- |
 Laser safety class | - | 3B | - |
 OEM lasers are not compliant with | - | IEC60825-1:2014 (compliant using additional accessories) | - |
 Country of origin | - | Lithuania | - |
Note: Product specifications are subject to change without prior notice to improve reliability, function or design or otherwise.
Typical spectrum

Typical spectrum with an integrated clean-up filter

Typical Near Field

Typical Far Field

Drawing
